Disable soon to be deprecated APIs per default for v8

test/cctest/test-transitions.cc

 // 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.
 
-// TODO(mythria): Remove this define after this flag is turned on globally
-#define V8_IMMINENT_DEPRECATION_WARNINGS
-
 #include <stdlib.h>
 #include <utility>
 
 #include "src/v8.h"
 
 #include "src/compilation-cache.h"
 #include "src/execution.h"
 #include "src/factory.h"
 #include "src/global-handles.h"
 #include "test/cctest/cctest.h"
@@ skipping 289 matching lines @@
           break;
         }
       }
     }
   }
 
 #ifdef DEBUG
   CHECK(TransitionArray::IsSortedNoDuplicates(*map0));
 #endif
 }