compile.py: Don't set OFFICIAL_BUILD for --mode=official builds.

build/scripts/slave/compile.py

 #!/usr/bin/env python
 # Copyright (c) 2012 The Chromium Authors. All rights reserved.
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
 """A tool to build chrome, executed by buildbot.
 
   When this is run, the current directory (cwd) should be the outer build
   directory (e.g., chrome-release/build/).
 
@@ skipping 440 matching lines @@
     self.PushLine(XcodebuildFilter.LineType.Raw, last_bits)
     return self.AssembleOutput()
 
 
 def maybe_set_official_build_envvars(options, env):
   if options.mode == 'google_chrome' or options.mode == 'official':
     env['CHROMIUM_BUILD'] = '_google_chrome'
 
   if options.mode == 'official':
     # Official builds are always Google Chrome.
-    env['OFFICIAL_BUILD'] = '1'
     env['CHROME_BUILD_TYPE'] = '_official'
 
 
 def main_xcode(options, args):
   """Interprets options, clobbers object files, and calls xcodebuild.
   """
 
   env = EchoDict(os.environ)
   goma_ready = goma_setup(options, env)
   if not goma_ready:
@@ skipping 778 matching lines @@
   options.target_output_dir = get_target_build_dir(options.build_tool,
       options.src_dir, options.target, 'iphoneos' in args)
   options.clobber = (options.clobber or
       landmines_triggered(options.target_output_dir))
 
   return main(options, args)
 
 
 if '__main__' == __name__:
   sys.exit(real_main())