Remove guava from chromium.

DEPS

 # This file is automatically processed to create .DEPS.git which is the file
 # that gclient uses under git.
 #
 # See http://code.google.com/p/chromium/wiki/UsingGit
 #
 # To test manually, run:
 #   python tools/deps2git/deps2git.py -o .DEPS.git -w <gclientdir>
 # where <gcliendir> is the absolute path to the directory containing the
 # .gclient file (the parent of 'src').
 #
@@ skipping 459 matching lines @@
 
     'src/third_party/apache-mime4j':
      Var('chromium_git') + '/chromium/deps/apache-mime4j.git' + '@' + '28cb1108bff4b6cf0a2e86ff58b3d025934ebe3a',
 
     'src/third_party/findbugs':
      Var('chromium_git') + '/chromium/deps/findbugs.git' + '@' + '7f69fa78a6db6dc31866d09572a0e356e921bf12',
 
     'src/third_party/freetype':
      Var('chromium_git') + '/chromium/src/third_party/freetype.git' + '@' + 'a2b9955b49034a51dfbc8bf9f4e9d312149cecac',
 
-    'src/third_party/guava/src':
-     Var('chromium_git') + '/external/guava-libraries.git' + '@' + 'c523556ab7d0f05afadebd20e7768d4c16af8771',
-
    'src/third_party/elfutils/src':
      Var('chromium_git') + '/external/elfutils.git' + '@' + '249673729a7e5dbd5de4f3760bdcaa3d23d154d7',
 
     'src/third_party/httpcomponents-client':
      Var('chromium_git') + '/chromium/deps/httpcomponents-client.git' + '@' + '285c4dafc5de0e853fa845dce5773e223219601c',
 
     'src/third_party/httpcomponents-core':
      Var('chromium_git') + '/chromium/deps/httpcomponents-core.git' + '@' + '9f7180a96f8fa5cab23f793c14b413356d419e62',
 
     'src/third_party/jarjar':
@@ skipping 299 matching lines @@
     # corresponding .py files have already been deleted.
     'name': 'remove_stale_pyc_files',
     'pattern': 'src/tools/.*\\.py',
     'action': [
         'python',
         'src/tools/remove_stale_pyc_files.py',
         'src/tools',
     ],
   },
 ]