mojo: Fix dependency for building python bindings.

third_party/cython/python_module.gypi

 # Copyright 2014 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.
 
 {
   'variables': {
-    'python_binary_modules%': [],
     'python_module_destination': '<(PRODUCT_DIR)/python/<(python_base_module)',
-    'cp': '<(DEPTH)/third_party/cython/cp_python_binary_modules.py',
-    'timestamp': '<(SHARED_INTERMEDIATE_DIR)/<(_target_name)_py_module.stamp',
   },
   'rules': [
     {
       'rule_name': '<(_target_name)_cp_python',
       'extension': 'py',
       'inputs': [
         '<(DEPTH)/build/cp.py',
       ],
       'outputs': [
         '<(python_module_destination)/<(RULE_INPUT_NAME)',
       ],
       'action': [
         'python',
         '<@(_inputs)',
         '<(RULE_INPUT_PATH)',
         '<@(_outputs)',
       ],
       'message': 'Moving <(RULE_INPUT_PATH) to its destination',
-    }
-  ],
-  'actions': [
-    {
-      'action_name': '<(_target_name)_move_to_python_modules',
-      'inputs': [
-        '<(cp)',
-      ],
-      'outputs': [
-        '<(timestamp)',
-      ],
-      'action': [
-        'python',
-        '<(cp)',
-        '<(timestamp)',
-        '<(PRODUCT_DIR)',
-        '<(python_module_destination)',
-        '>@(python_binary_modules)',
-      ],
     },
   ],
   'hard_dependency': 1,
 }