Get rid of all the library tags.

R=rnystrom@google.com

Review URL: https://codereview.chromium.org//1577363003 .
diff --git a/lib/error_code.dart b/lib/error_code.dart
index 14b77f2..7dd8079 100644
--- a/lib/error_code.dart
+++ b/lib/error_code.dart
@@ -9,8 +9,6 @@
 /// convenience constructors in [RpcException].
 ///
 /// [spec]: http://www.jsonrpc.org/specification#error_object
-library json_rpc_2.error_code;
-
 /// An error code indicating that invalid JSON was received by the server.
 const PARSE_ERROR = -32700;
 
diff --git a/lib/json_rpc_2.dart b/lib/json_rpc_2.dart
index 08e79a1..33e5f49 100644
--- a/lib/json_rpc_2.dart
+++ b/lib/json_rpc_2.dart
@@ -2,8 +2,6 @@
 // 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 json_rpc_2;
-
 export 'src/client.dart';
 export 'src/exception.dart';
 export 'src/parameters.dart';
diff --git a/lib/src/client.dart b/lib/src/client.dart
index 951f927..e75e7f3 100644
--- a/lib/src/client.dart
+++ b/lib/src/client.dart
@@ -2,8 +2,6 @@
 // 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 json_rpc_2.client;
-
 import 'dart:async';
 
 import 'package:stack_trace/stack_trace.dart';
diff --git a/lib/src/exception.dart b/lib/src/exception.dart
index 2fb0713..b359155 100644
--- a/lib/src/exception.dart
+++ b/lib/src/exception.dart
@@ -2,8 +2,6 @@
 // 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 json_rpc_2.exception;
-
 import '../error_code.dart' as error_code;
 
 /// An exception from a JSON-RPC server that can be translated into an error
diff --git a/lib/src/parameters.dart b/lib/src/parameters.dart
index 1e25220..91ad1b5 100644
--- a/lib/src/parameters.dart
+++ b/lib/src/parameters.dart
@@ -2,8 +2,6 @@
 // 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 json_rpc_2.parameters;
-
 import 'dart:convert';
 
 import 'exception.dart';
diff --git a/lib/src/peer.dart b/lib/src/peer.dart
index 7821d9f..a6707e2 100644
--- a/lib/src/peer.dart
+++ b/lib/src/peer.dart
@@ -2,8 +2,6 @@
 // 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 json_rpc_2.peer;
-
 import 'dart:async';
 
 import '../error_code.dart' as error_code;
diff --git a/lib/src/server.dart b/lib/src/server.dart
index 4188e78..06dd0b9 100644
--- a/lib/src/server.dart
+++ b/lib/src/server.dart
@@ -2,8 +2,6 @@
 // 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 json_rpc_2.server;
-
 import 'dart:async';
 import 'dart:collection';
 import 'dart:convert';
diff --git a/lib/src/two_way_stream.dart b/lib/src/two_way_stream.dart
index 88a8dcc..4f20686 100644
--- a/lib/src/two_way_stream.dart
+++ b/lib/src/two_way_stream.dart
@@ -2,8 +2,6 @@
 // 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 json_rpc_2.two_way_stream;
-
 import 'dart:async';
 import 'dart:convert';
 
diff --git a/lib/src/utils.dart b/lib/src/utils.dart
index f862cb7..dde6b4a 100644
--- a/lib/src/utils.dart
+++ b/lib/src/utils.dart
@@ -2,8 +2,6 @@
 // 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 json_rpc_2.utils;
-
 import 'dart:async';
 
 import 'package:stack_trace/stack_trace.dart';
diff --git a/test/client/client_test.dart b/test/client/client_test.dart
index 3f50ab7..1553787 100644
--- a/test/client/client_test.dart
+++ b/test/client/client_test.dart
@@ -2,8 +2,6 @@
 // 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 json_rpc_2.test.client.client_test;
-
 import 'dart:async';
 import 'dart:convert';
 
diff --git a/test/client/stream_test.dart b/test/client/stream_test.dart
index ba5db5b..146e753 100644
--- a/test/client/stream_test.dart
+++ b/test/client/stream_test.dart
@@ -2,8 +2,6 @@
 // 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 json_rpc_2.test.client.stream_test;
-
 import 'dart:async';
 
 import 'package:test/test.dart';
diff --git a/test/client/utils.dart b/test/client/utils.dart
index e759fb1..8684892 100644
--- a/test/client/utils.dart
+++ b/test/client/utils.dart
@@ -2,8 +2,6 @@
 // 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 json_rpc_2.test.client.utils;
-
 import 'dart:async';
 import 'dart:convert';
 
diff --git a/test/peer_test.dart b/test/peer_test.dart
index c519873..7008b72 100644
--- a/test/peer_test.dart
+++ b/test/peer_test.dart
@@ -2,8 +2,6 @@
 // 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 json_rpc_2.test.client.client_test;
-
 import 'dart:async';
 import 'dart:convert';
 
diff --git a/test/server/batch_test.dart b/test/server/batch_test.dart
index 704ea6e..d7bf79d 100644
--- a/test/server/batch_test.dart
+++ b/test/server/batch_test.dart
@@ -2,8 +2,6 @@
 // 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 json_rpc_2.test.server.batch_test;
-
 import 'dart:convert';
 
 import 'package:test/test.dart';
diff --git a/test/server/invalid_request_test.dart b/test/server/invalid_request_test.dart
index aa00fb8..cd6f014 100644
--- a/test/server/invalid_request_test.dart
+++ b/test/server/invalid_request_test.dart
@@ -2,8 +2,6 @@
 // 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 json_rpc_2.test.server.invalid_request_test;
-
 import 'dart:convert';
 
 import 'package:test/test.dart';
diff --git a/test/server/parameters_test.dart b/test/server/parameters_test.dart
index a518698..e7cb9f2 100644
--- a/test/server/parameters_test.dart
+++ b/test/server/parameters_test.dart
@@ -2,8 +2,6 @@
 // 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 json_rpc_2.test.server.parameters_test;
-
 import 'package:test/test.dart';
 import 'package:json_rpc_2/json_rpc_2.dart' as json_rpc;
 
diff --git a/test/server/server_test.dart b/test/server/server_test.dart
index 3573332..8cc9c5a 100644
--- a/test/server/server_test.dart
+++ b/test/server/server_test.dart
@@ -2,8 +2,6 @@
 // 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 json_rpc_2.test.server.server_test;
-
 import 'dart:convert';
 
 import 'package:test/test.dart';
diff --git a/test/server/stream_test.dart b/test/server/stream_test.dart
index 8fd1239..58c5e62 100644
--- a/test/server/stream_test.dart
+++ b/test/server/stream_test.dart
@@ -2,8 +2,6 @@
 // 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 json_rpc_2.test.server.stream_test;
-
 import 'dart:async';
 
 import 'package:test/test.dart';
diff --git a/test/server/utils.dart b/test/server/utils.dart
index fabef1f..9b4b020 100644
--- a/test/server/utils.dart
+++ b/test/server/utils.dart
@@ -2,8 +2,6 @@
 // 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 json_rpc_2.test.server.util;
-
 import 'dart:async';
 import 'dart:convert';