Remove pyauto references from gyp files in preparation for deleting the code.

chrome/chrome.gyp

 # 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.
 {
   'variables': {
     'chromium_code': 1,
 
     # Define the common dependencies that contain all the actual
     # Chromium functionality.  This list gets pulled in below by
     # the link of the actual chrome (or chromium) executable on
@@ skipping 732 matching lines @@
               ],
               'dependencies': [
                 'chrome',
                 '../breakpad/breakpad.gyp:dump_syms',
               ],
             }],
             ['linux_strip_reliability_tests==1', {
               'actions': [
                 {
                   'action_name': 'strip_reliability_tests',
-                  'inputs': [
-                    '<(PRODUCT_DIR)/_pyautolib.so',
-                  ],
                   'outputs': [
                     '<(PRODUCT_DIR)/strip_reliability_tests.stamp',
                   ],
                   'action': ['strip',
                              '-g',
                              '<@(_inputs)'],
                   'message': 'Stripping reliability tests',
                 },
               ],
             }],
@@ skipping 351 matching lines @@
               'sources': [
                 'service/cloud_print/print_system_dummy.cc',
               ],
             }],
           ],
         },
       ],
     }],
   ],  # 'conditions'
 }