code: def _remove_persistent_module(mod, comment):
      '''
      Remove module from configuration file. If comment is true only comment line
      where module is.
      '''
      conf = _get_modules_conf()
      mod_name = _strip_module_name(mod)
      if not mod_name or mod_name not in mod_list(True):
          return set()
      escape_mod = re.escape(mod)
      if comment:
          __salt__['file.comment'](conf, '^[\t ]*{0}[\t ]?'.format(escape_mod))
      else:
          __salt__['file.sed'](conf, '^[\t ]*{0}[\t ]?'.format(escape_mod), '')
      return set([mod_name]f _remove_persistent_module(mod, comment):
      '''
      Remove module from configuration file. If comment is true only comment line
      where module is.
      '''
      conf = _get_modules_conf()
      mod_name = _strip_module_name(mod)
      if not mod_name or mod_name not in mod_list(True):
          return set()
      escape_mod = re.escape(mod)
      if comment:
          __salt__['file.comment'](conf, '^[\t ]*{0}[\t ]?'.format(escape_mod))
      else:
          __salt__['file.sed'](conf, '^[\t ]*{0}[\t ]?'.format(escape_mod), '')
      return set([mod_name])
docs: Remove module from configuration file. If comment is true only comment line
      where module is.