[Mac] Remove pdfsqueeze.

DEPS

 # This file is used to manage the dependencies of the Chromium src repo. It is
 # used by gclient to determine what version of each dependency to check out, and
 # where.
 #
 # For more information, please refer to the official documentation:
 #   https://sites.google.com/a/chromium.org/dev/developers/how-tos/get-the-code
 #
 # When adding a new dependency, please update the top-level .gitignore file
 # to list the dependency's destination directory.
 #
@@ skipping 343 matching lines @@
     'src/native_client': None,
     'src/third_party/ffmpeg': None,
     'src/third_party/hunspell_dictionaries': None,
     'src/third_party/webgl': None,
   },
   'mac': {
     'src/third_party/google_toolbox_for_mac/src':
       Var('chromium_git') + '/external/github.com/google/google-toolbox-for-mac.git' + '@' + Var('google_toolbox_for_mac_revision'),
 
 
-    'src/third_party/pdfsqueeze':
-      Var('chromium_git') + '/external/pdfsqueeze.git' + '@' + '5936b871e6a087b7e50d4cbcb122378d8a07499f',
-
     'src/third_party/lighttpd':
      Var('chromium_git') + '/chromium/deps/lighttpd.git' + '@' + Var('lighttpd_revision'),
 
     'src/chrome/installer/mac/third_party/xz/xz':
      Var('chromium_git') + '/chromium/deps/xz.git' + '@' + 'eecaf55632ca72e90eb2641376bce7cdbc7284f7',
   },
   'unix': {
     # Linux, really.
     'src/third_party/xdg-utils':
      Var('chromium_git') + '/chromium/deps/xdg-utils.git' + '@' + 'd80274d5869b17b8c9067a1022e4416ee7ed5e0d',
@@ skipping 469 matching lines @@
                'src/build/android/download_doclava.py',
     ],
   },
   {
     # A change to a .gyp, .gypi, or to GYP itself should run the generator.
     'name': 'gyp',
     'pattern': '.',
     'action': ['python', 'src/build/gyp_chromium', '--running-as-hook'],
   },
 ]