[turbofan] Drop V8_TURBOFAN_BACKEND and V8_TURBOFAN_TARGET defines.

test/unittests/compiler/compiler-test-utils.h

 // Copyright 2014 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef V8_UNITTESTS_COMPILER_COMPILER_TEST_UTILS_H_
 #define V8_UNITTESTS_COMPILER_COMPILER_TEST_UTILS_H_
 
 #include "testing/gtest/include/gtest/gtest.h"
 
 namespace v8 {
 namespace internal {
 namespace compiler {
 
 // The TARGET_TEST(Case, Name) macro works just like
 // TEST(Case, Name), except that the test is disabled
 // if the platform is not a supported TurboFan target.
-#if V8_TURBOFAN_TARGET
 #define TARGET_TEST(Case, Name) TEST(Case, Name)
-#else
-#define TARGET_TEST(Case, Name) TEST(Case, DISABLED_##Name)
-#endif
 
 
 // The TARGET_TEST_F(Case, Name) macro works just like
 // TEST_F(Case, Name), except that the test is disabled
 // if the platform is not a supported TurboFan target.
-#if V8_TURBOFAN_TARGET
 #define TARGET_TEST_F(Case, Name) TEST_F(Case, Name)
-#else
-#define TARGET_TEST_F(Case, Name) TEST_F(Case, DISABLED_##Name)
-#endif
 
 
 // The TARGET_TEST_P(Case, Name) macro works just like
 // TEST_P(Case, Name), except that the test is disabled
 // if the platform is not a supported TurboFan target.
-#if V8_TURBOFAN_TARGET
 #define TARGET_TEST_P(Case, Name) TEST_P(Case, Name)
-#else
-#define TARGET_TEST_P(Case, Name) TEST_P(Case, DISABLED_##Name)
-#endif
 
 
 // The TARGET_TYPED_TEST(Case, Name) macro works just like
 // TYPED_TEST(Case, Name), except that the test is disabled
 // if the platform is not a supported TurboFan target.
-#if V8_TURBOFAN_TARGET
 #define TARGET_TYPED_TEST(Case, Name) TYPED_TEST(Case, Name)
-#else
-#define TARGET_TYPED_TEST(Case, Name) TYPED_TEST(Case, DISABLED_##Name)
-#endif
 
 }  // namespace compiler
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_UNITTESTS_COMPILER_COMPILER_TEST_UTILS_H_