State:

delete_sudoers_line:
  file.line:
    - name: /etc/sudoers
    - match: 'testuser    ALL=(ALL)	NOPASSWD: ALL'
    - mode: delete

root@salt-master:/srv/salt/salt/tools# salt 'localhost' state.apply tools/delete
salt-stack:
    The minion function caused an exception: Traceback (most recent call last):
      File "/usr/lib/python2.7/dist-packages/salt/minion.py", line 1161, in _thread_return
        return_data = func(*args, **kwargs)
      File "/usr/lib/python2.7/dist-packages/salt/modules/state.py", line 296, in apply_
        return sls(mods, **kwargs)
      File "/usr/lib/python2.7/dist-packages/salt/modules/state.py", line 681, in sls
        ret = st_.state.call_high(high_)
      File "/usr/lib/python2.7/dist-packages/salt/state.py", line 2067, in call_high
        ret = dict(list(disabled.items()) + list(self.call_chunks(chunks).items()))
      File "/usr/lib/python2.7/dist-packages/salt/state.py", line 1623, in call_chunks
        running = self.call_chunk(low, running, chunks)
      File "/usr/lib/python2.7/dist-packages/salt/state.py", line 1769, in call_chunk
        self._mod_init(low)
      File "/usr/lib/python2.7/dist-packages/salt/state.py", line 612, in _mod_init
        self.states['{0}.{1}'.format(low['state'], low['fun'])]  # pylint: disable=W0106
      File "/usr/lib/python2.7/dist-packages/salt/utils/lazy.py", line 90, in __getitem__
        raise KeyError(key)
    KeyError: 'file.line'