Remove deprecated and unused run_and_throw_if_fail from webkitpy

Tools/Scripts/webkitpy/tool/commands/flakytests.py

 # Copyright (c) 2011 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 80 matching lines @@
             reviewer_emails = options.reviewers.split(',')
         else:
             reviewer_emails = sheriff_calendar.current_gardener_emails()
             if not reviewer_emails:
                 print "No gardener, and --reviewers not specified, not bothering."
                 return 1
 
         commit_message = self.COMMIT_MESSAGE % ','.join(reviewer_emails)
         git_cmd = ['git', 'commit', '-m', commit_message,
             tool.filesystem.join(tool.scm().checkout_root, flaky_tests_path)]
-        tool.executive.run_and_throw_if_fail(git_cmd)
+        tool.executive.run_command(git_cmd)
 
         git_cmd = ['git', 'cl', 'upload', '--send-mail', '-f',
             '--cc', ','.join(self.ALWAYS_CC)]
-        tool.executive.run_and_throw_if_fail(git_cmd)
+        tool.executive.run_command(git_cmd)
 
     def execute(self, options, args, tool):
         factory = self.expectations_factory()
 
         # FIXME: WebKit Linux 32 and WebKit Linux have the same specifiers;
         # if we include both of them, we'll get duplicate lines. Ideally
         # Linux 32 would have unique speicifiers.
         most_builders = builders.all_builder_names()
         if 'WebKit Linux 32' in most_builders:
             most_builders.remove('WebKit Linux 32')
@@ skipping 10 matching lines @@
         # in existing TestExpectations. We could certainly load existing TestExpecations
         # and filter accordingly, or update existing TestExpectations instead of FlakyTests.
         flaky_tests_path = fs.join(port.layout_tests_dir(), 'FlakyTests')
         flaky_tests_contents = self.FLAKY_TEST_CONTENTS % TestExpectations.list_to_string(lines)
         fs.write_text_file(flaky_tests_path, flaky_tests_contents)
         print "Updated %s" % flaky_tests_path
 
         if options.upload:
             return self._commit_and_upload(tool, options)