Deletes the Key

async def _discard(self, path, *, recurse=None, separator=None, cas=None):
        """Deletes the Key
        """
        path = "/v1/kv/%s" % path
        response = await self._api.delete(path, params={
            "cas": cas,
            "recurse": recurse,
            "separator": separator
        })
        return response