Remove all perl scripts from Tools/Scripts

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 70 matching lines @@
         tempfile, temp_name = fs.open_binary_tempfile('')
         tempfile.write(content)
         tempfile.close()
         file_interpreter = Executive.interpreter_for_script(temp_name, fs)
 
         self.assertEqual(file_interpreter, intepreter)
 
     def test_interpreter_for_script(self):
         self.assert_interpreter_for_content(None, '')
         self.assert_interpreter_for_content(None, 'abcd\nefgh\nijklm')
-        self.assert_interpreter_for_content(None, '##/usr/bin/perl')
-        self.assert_interpreter_for_content('perl', '#!/usr/bin/env perl')
-        self.assert_interpreter_for_content('perl', '#!/usr/bin/env perl\nfirst\nsecond')
-        self.assert_interpreter_for_content('perl', '#!/usr/bin/perl')
-        self.assert_interpreter_for_content('perl', '#!/usr/bin/perl -w')
+        self.assert_interpreter_for_content(None, '##/usr/bin/env python')

[Julien - ping for review, 2015/07/31 21:51:25]

Dirk, I think this unit test updates makes sense. Would appreciate if you could
review this part though.

[Dirk Pranke, 2015/07/31 22:01:24]

Yup, that's fine. Still lgtm.

         self.assert_interpreter_for_content(sys.executable, '#!/usr/bin/env python')
         self.assert_interpreter_for_content(sys.executable, '#!/usr/bin/env python\nfirst\nsecond')
         self.assert_interpreter_for_content(sys.executable, '#!/usr/bin/python')
         self.assert_interpreter_for_content('ruby', '#!/usr/bin/env ruby')
         self.assert_interpreter_for_content('ruby', '#!/usr/bin/env ruby\nfirst\nsecond')
         self.assert_interpreter_for_content('ruby', '#!/usr/bin/ruby')
 
     def test_run_command_with_bad_command(self):
         def run_bad_command():
             Executive().run_command(["foo_bar_command_blah"], error_handler=Executive.ignore_error, return_exit_code=True)
@@ skipping 95 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:]))