Remove optional --commit-author argument from auto-rebaseline script.

third_party/WebKit/Tools/Scripts/webkitpy/tool/commands/rebaseline_unittest.py

 # Copyright (C) 2010 Google Inc. All rights reserved.
 #
 # Redistribution and use in source and binary forms, with or without
 # modification, are permitted provided that the following conditions are
 # met:
 #
 #    * Redistributions of source code must retain the above copyright
 # notice, this list of conditions and the following disclaimer.
 #    * Redistributions in binary form must reproduce the above
 # copyright notice, this list of conditions and the following disclaimer
@@ skipping 1404 matching lines @@
         RIETVELD_REFRESH_TOKEN = '/creds/refresh_tokens/test_rietveld_token'
         self._basic_execute_test(
             [
                 ['git', 'cl', 'upload', '-f', '--auth-refresh-token-json', RIETVELD_REFRESH_TOKEN],
                 ['git', 'pull'],
                 ['git', 'cl', 'land', '-f', '-v', '--auth-refresh-token-json', RIETVELD_REFRESH_TOKEN],
                 ['git', 'config', 'branch.auto-rebaseline-temporary-branch.rietveldissue'],
             ],
             auth_refresh_token_json=RIETVELD_REFRESH_TOKEN)
 
-    def test_execute_with_commit_author(self):
-        COMMIT_AUTHOR = "JRR Tolkien <tolkien@greyhavens.org>"
-        self._basic_execute_test(
-            [
-                ['git', 'cl', 'upload', '-f'],
-                ['git', 'pull'],
-                ['git', 'cl', 'land', '-f', '-v'],
-                ['git', 'config', 'branch.auto-rebaseline-temporary-branch.rietveldissue'],
-            ], commit_author=COMMIT_AUTHOR)
-        self.assertEqual(self.tool.scm().local_commits(),
-            [['Auto-rebaseline for r1234\n\nhttps://chromium.googlesource.com/chromium/src/+/6469e754a1\n\nTBR=foobarbaz1@chromium.org\n',
-            True,
-            COMMIT_AUTHOR]])
-
     def test_execute_with_dry_run(self):
         self._basic_execute_test([], dry_run=True)
         self.assertEqual(self.tool.scm().local_commits(), [])
 
 
 class TestRebaselineOMatic(_BaseTestCase):
     command_constructor = RebaselineOMatic
 
     def setUp(self):
         super(TestRebaselineOMatic, self).setUp()
@@ skipping 33 matching lines @@
         oc.capture_output()
         self.command._do_one_rebaseline()
         out, _, _ = oc.restore_output()
 
         self.assertEqual(out, 'MOCK STDOUT\n')
         self.assertEqual(self.tool.executive.calls, [
             ['git', 'pull'],
             ['/mock-checkout/third_party/WebKit/Tools/Scripts/webkit-patch', 'auto-rebaseline', '--verbose'],
         ])
         self.assertEqual(self._logs, ['MOCK STDOUT'])