Remove implicit --optimize from testing dartc component in release mode

tests/language/language.status

 # Copyright (c) 2012, 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.
 
 # This directory contains tests that are intended to show the
 # current state of the language.
 
 # In order to maintain maximum test coverage for all builds,
 # please use the following procedure to mark a test
 # failed on architectures other than the one you are working on.
@@ skipping 86 matching lines @@
 [ ($component == vm || $component == dartium) && $checked ]
 
 DefaultFactory2Test/01: Fail # Issue 943
 WrongNumberTypeArgumentsTest: Fail # This test should be negative
 
 [ $component == vm && $mode == debug ]
 GCTest: Skip  # Takes too long.
 
 [ $component == vm && $mode == release ]
 
-# Problems specific to dartc optimized mode
-[ ($component == dartc || $component == chromium) && $mode == release ]
-
-CTConst2Test: Fail                       # Codesite issue 124
-CallThroughNullGetterTest: Fail          # Bug 5391976
-Label2NegativeTest: Crash                # Bug 5318228
-MethodInvocationTest: Fail               # Bug  5392266
-NullPointerExceptionTest: Fail           # Bug 5391976
-Private3Test: Fail                       # Bug 5391976
-Switch3NegativeTest: Crash               # Bug 5318228
-ToplevelCollision2Test/none: Fail        # Issue 647
-
-# Problems specific to dartc debug mode
-[ ($component == dartc || $component == chromium) && $mode == debug ]
-
-
 [ $component == dartc || $component == chromium ]
 
 # Marked failed after code generation removed from dartc
 
 ApplicationNegativeTest: Fail    # status change with --check-only
 AssertKeywordNegativeTest: Fail    # status change with --check-only
 AssignInstanceMethodNegativeTest: Fail    # status change with --check-only
 BitOperationsTest: Pass    # status change with --check-only
 BodyLessConstructorWrongArgNegativeTest: Fail    # status change with --check-only
 CallOperatorTest: Pass    # status change with --check-only
@@ skipping 410 matching lines @@
 [ $component == frog && $mode == debug ]
 ConstructorRedirect1NegativeTest: Skip # Undiagnosed infinite loop.
 ConstructorRedirect2NegativeTest: Skip # Undiagnosed infinite loop.
 
 [ $arch == simarm ]
 *: Skip
 
 [ $arch == arm ]
 *: Skip
 
-[ $component == dartc && $mode == release ]
-*: Skip