Delete unused files in test folders.

These files are not tests nor are they used by any tests.

This change was split out from patch 198141 which had to be reverted.

Change-Id: I26ca5931bf9e300e694d69ac7558536c965349ee
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/200562
Auto-Submit: Bob Nystrom <rnystrom@google.com>
Commit-Queue: Lasse R.H. Nielsen <lrn@google.com>
Reviewed-by: Lasse R.H. Nielsen <lrn@google.com>
diff --git a/tests/language/library/a.dart b/tests/language/library/a.dart
deleted file mode 100644
index 95f855e..0000000
--- a/tests/language/library/a.dart
+++ /dev/null
@@ -1,10 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-//
-
-library libraryA.dart;
-
-import "c.dart";
-
-var fooA = fooC;
diff --git a/tests/language/library/b.dart b/tests/language/library/b.dart
deleted file mode 100644
index 2a36a64..0000000
--- a/tests/language/library/b.dart
+++ /dev/null
@@ -1,10 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-//
-
-library libraryB.dart;
-
-import "c.dart";
-
-var fooB = fooC;
diff --git a/tests/language/library/c.dart b/tests/language/library/c.dart
deleted file mode 100644
index fcf3555..0000000
--- a/tests/language/library/c.dart
+++ /dev/null
@@ -1,8 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-//
-
-library libraryC.dart;
-
-var fooC = 10;
diff --git a/tests/language/library/d.dart b/tests/language/library/d.dart
deleted file mode 100644
index 054c033..0000000
--- a/tests/language/library/d.dart
+++ /dev/null
@@ -1,10 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-//
-
-library libraryD.dart;
-
-import "f.dart";
-
-var fooD = fooC;
diff --git a/tests/language/library/e.dart b/tests/language/library/e.dart
deleted file mode 100644
index 0332e42..0000000
--- a/tests/language/library/e.dart
+++ /dev/null
@@ -1,11 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-//
-
-library libraryE.dart;
-
-import "c.dart";
-import "f.dart";
-
-var fooE = 0;
diff --git a/tests/language/library/f.dart b/tests/language/library/f.dart
deleted file mode 100644
index f73e3cb..0000000
--- a/tests/language/library/f.dart
+++ /dev/null
@@ -1,8 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-//
-
-library libraryF.dart;
-
-var fooC = 10;
diff --git a/tests/language/library/library3.dart b/tests/language/library/library3.dart
deleted file mode 100644
index 625f568..0000000
--- a/tests/language/library/library3.dart
+++ /dev/null
@@ -1,8 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-//
-
-library library3.dart;
-
-import "../library2.dart"; // defines "foo" and "foo1".
diff --git a/tests/language/library/library4.dart b/tests/language/library/library4.dart
deleted file mode 100644
index 25af011..0000000
--- a/tests/language/library/library4.dart
+++ /dev/null
@@ -1,11 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-//
-
-library library4.dart;
-
-import "../library2.dart"; // defines "foo" and "foo1".
-
-var foo;
-var foo1 = 0;
diff --git a/tests/language/script/source.dart b/tests/language/script/source.dart
deleted file mode 100644
index 44f0d34..0000000
--- a/tests/language/script/source.dart
+++ /dev/null
@@ -1,7 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// A perfectly legal dart source file for use with script and library tests.
-
-const int script_source = 1;
diff --git a/tests/language/top_level/file3.dart b/tests/language/top_level/file3.dart
deleted file mode 100644
index a42c558..0000000
--- a/tests/language/top_level/file3.dart
+++ /dev/null
@@ -1,7 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-main() {
-  Expect.equals(42, prefix.topLevelVar);
-}
diff --git a/tests/language_2/library/a.dart b/tests/language_2/library/a.dart
deleted file mode 100644
index 1b7fc61..0000000
--- a/tests/language_2/library/a.dart
+++ /dev/null
@@ -1,12 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-//
-
-// @dart = 2.9
-
-library libraryA.dart;
-
-import "c.dart";
-
-var fooA = fooC;
diff --git a/tests/language_2/library/b.dart b/tests/language_2/library/b.dart
deleted file mode 100644
index dfc7b36..0000000
--- a/tests/language_2/library/b.dart
+++ /dev/null
@@ -1,12 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-//
-
-// @dart = 2.9
-
-library libraryB.dart;
-
-import "c.dart";
-
-var fooB = fooC;
diff --git a/tests/language_2/library/c.dart b/tests/language_2/library/c.dart
deleted file mode 100644
index cc212ff..0000000
--- a/tests/language_2/library/c.dart
+++ /dev/null
@@ -1,10 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-//
-
-// @dart = 2.9
-
-library libraryC.dart;
-
-var fooC = 10;
diff --git a/tests/language_2/library/d.dart b/tests/language_2/library/d.dart
deleted file mode 100644
index 25ec2a9..0000000
--- a/tests/language_2/library/d.dart
+++ /dev/null
@@ -1,12 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-//
-
-// @dart = 2.9
-
-library libraryD.dart;
-
-import "f.dart";
-
-var fooD = fooC;
diff --git a/tests/language_2/library/e.dart b/tests/language_2/library/e.dart
deleted file mode 100644
index c00631e..0000000
--- a/tests/language_2/library/e.dart
+++ /dev/null
@@ -1,13 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-//
-
-// @dart = 2.9
-
-library libraryE.dart;
-
-import "c.dart";
-import "f.dart";
-
-var fooE = 0;
diff --git a/tests/language_2/library/f.dart b/tests/language_2/library/f.dart
deleted file mode 100644
index 085bea4..0000000
--- a/tests/language_2/library/f.dart
+++ /dev/null
@@ -1,10 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-//
-
-// @dart = 2.9
-
-library libraryF.dart;
-
-var fooC = 10;
diff --git a/tests/language_2/library/library3.dart b/tests/language_2/library/library3.dart
deleted file mode 100644
index 96a979f..0000000
--- a/tests/language_2/library/library3.dart
+++ /dev/null
@@ -1,10 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-//
-
-// @dart = 2.9
-
-library library3.dart;
-
-import "../library2.dart"; // defines "foo" and "foo1".
diff --git a/tests/language_2/library/library4.dart b/tests/language_2/library/library4.dart
deleted file mode 100644
index f4d701e..0000000
--- a/tests/language_2/library/library4.dart
+++ /dev/null
@@ -1,13 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-//
-
-// @dart = 2.9
-
-library library4.dart;
-
-import "../library2.dart"; // defines "foo" and "foo1".
-
-var foo;
-var foo1 = 0;
diff --git a/tests/language_2/script/source.dart b/tests/language_2/script/source.dart
deleted file mode 100644
index b9861c7..0000000
--- a/tests/language_2/script/source.dart
+++ /dev/null
@@ -1,9 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// A perfectly legal dart source file for use with script and library tests.
-
-const int script_source = 1;
diff --git a/tests/language_2/top_level/file3.dart b/tests/language_2/top_level/file3.dart
deleted file mode 100644
index d9ffab6..0000000
--- a/tests/language_2/top_level/file3.dart
+++ /dev/null
@@ -1,9 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-main() {
-  Expect.equals(42, prefix.topLevelVar);
-}