::
        
            DELETE /:login/machines/:id/tags/:tag
        
        Delete a tag and its corresponding value on the machine.

def delete_tag(self, tag):
        """
        ::
        
            DELETE /:login/machines/:id/tags/:tag
        
        Delete a tag and its corresponding value on the machine.
        """
        j, r = self.datacenter.request('DELETE', self.path + '/tags/' + tag)
        r.raise_for_status()