remove useless line, the result is never used

devscripts/fish-completion.py

@@ -30,7 +30,6 @@ def build_completion(opt_parser):
     for group in opt_parser.option_groups:
         for option in group.option_list:
             long_option = option.get_opt_string().strip('-')
-            shell_quote([option.help])
             complete_cmd = ['complete', '--command', 'youtube-dl', '--long-option', long_option]
             if option._short_opts:
                 complete_cmd += ['--short-option', option._short_opts[0].strip('-')]