Remove deprecated and unused run_and_throw_if_fail from webkitpy

Tools/Scripts/webkitpy/common/system/executive_unittest.py

 # Copyright (C) 2010 Google Inc. All rights reserved.
 # Copyright (C) 2009 Daniel Bates (dbates@intudata.com). 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
@@ skipping 140 matching lines @@
         output = executive.run_command(command_line('echo', unicode_tor_input))
         self.assertEqual(output, unicode_tor_output)
 
         output = executive.run_command(command_line('echo', unicode_tor_input), decode_output=False)
         self.assertEqual(output, encoded_tor)
 
         # Make sure that str() input also works.
         output = executive.run_command(command_line('cat'), input=encoded_tor, decode_output=False)
         self.assertEqual(output, encoded_tor)
 
-        # FIXME: We should only have one run* method to test
-        output = executive.run_and_throw_if_fail(command_line('echo', unicode_tor_input), quiet=True)
-        self.assertEqual(output, unicode_tor_output)
-
-        output = executive.run_and_throw_if_fail(command_line('echo', unicode_tor_input), quiet=True, decode_output=False)
-        self.assertEqual(output, encoded_tor)
-
     def test_kill_process(self):
         executive = Executive()
         process = subprocess.Popen(never_ending_command(), stdout=subprocess.PIPE)
         self.assertEqual(process.poll(), None)  # Process is running
         executive.kill_process(process.pid)
 
         # Killing again should fail silently.
         executive.kill_process(process.pid)
 
     def _assert_windows_image_name(self, name, expected_windows_name):
@@ skipping 33 matching lines @@
         import msvcrt
         msvcrt.setmode(stdout.fileno(), os.O_BINARY)
     if cmd == '--cat':
         stdout.write(stdin.read())
     elif cmd == '--echo':
         stdout.write(' '.join(args))
     return 0
 
 if __name__ == '__main__' and len(sys.argv) > 1 and sys.argv[1] in ('--cat', '--echo'):
     sys.exit(main(sys.platform, sys.stdin, sys.stdout, sys.argv[1], sys.argv[2:]))