Remove stale V8_IMMINENT_DEPRECATION_WARNINGS defines

R=machenbach@chromium.org
BUG=

Review-Url: https://codereview.chromium.org/1927083002
Cr-Commit-Position: refs/heads/master@{#35858}

src/v8.gyp

@@ -372,10 +372,6 @@
         # To be able to find base/trace_event/common/trace_event_common.h
         '../..',
       ],
-      'defines': [
-        # TODO(jochen): Remove again after this is globally turned on.
-        'V8_IMMINENT_DEPRECATION_WARNINGS',
-      ],
       'sources': [  ### gcmole(all) ###
         '../include/v8-debug.h',
         '../include/v8-experimental.h',

tools/parser-shell.gyp

@@ -50,10 +50,6 @@
       'include_dirs+': [
         '..',
       ],
-      'defines': [
-        # TODO(jochen): Remove again after this is globally turned on.
-        'V8_IMMINENT_DEPRECATION_WARNINGS',
-      ],
       'sources': [
         'parser-shell.cc',
         'shell-utils.h',