Re-enable now passing tests and remove redundant status file entry.

Because the tests were marked "Skip" there is no way to find out when
they started passing again.

R=rmacnak@google.com

Review-Url: https://codereview.chromium.org/2625833004 .
diff --git a/tests/co19/co19-runtime.status b/tests/co19/co19-runtime.status
index d6989ba..fcf344b 100644
--- a/tests/co19/co19-runtime.status
+++ b/tests/co19/co19-runtime.status
@@ -190,9 +190,6 @@
 LibTest/core/List/List_class_A01_t02: Pass, Slow
 LibTest/isolate/Isolate/spawn_A04_t01: Pass, Fail  # Issue 28269
 
-[ ($runtime == dart_precompiled || $runtime == dart_app) && $mode == debug ]
-Language/Libraries_and_Scripts/Imports/deferred_import_t02: Crash # Issue 27201
-
 [ ($runtime == vm || $runtime == dart_precompiled) && ($arch != x64 && $arch != simarm64 && $arch != arm64 && $arch != simdbc64 && $arch != simdbc) ]
 LibTest/core/int/operator_left_shift_A01_t02: Fail # co19 issue 129
 
diff --git a/tests/language/language.status b/tests/language/language.status
index 547e5a9..83da9ad 100644
--- a/tests/language/language.status
+++ b/tests/language/language.status
@@ -71,7 +71,6 @@
 class_keyword_test/02: MissingCompileTimeError # Issue 13627
 unicode_bom_test: Fail # Issue 16067
 vm/debug_break_enabled_vm_test/01: Crash, OK # Expected to hit breakpoint.
-try_catch_optimized1_test: Skip # Srdjan investigating
 
 [ ($compiler == none || $compiler == precompiler || $compiler == app_jit) && $checked ]
 type_variable_bounds4_test/01: Fail # Issue 14006
@@ -170,7 +169,6 @@
 stacktrace_rethrow_error_test: Pass, RuntimeError
 stacktrace_rethrow_nonerror_test: Pass, RuntimeError
 stacktrace_test: Pass, RuntimeError
-regress_26948_test: Skip # Crashes, regis investigating
 vm/regress_28325_test: RuntimeError  # Missing source position in AOT.