def _delete_dummy_intf_rtr(self, tenant_id, tenant_name, rtr_id):
dummy_router_dict = self.get_dummy_router_net(tenant_id)<EOL>ret = self.delete_os_dummy_rtr_nwk(dummy_router_dict.get('<STR_LIT>'),<EOL>dummy_router_dict.get('<STR_LIT>'),<EOL>dummy_router_dict.get('<STR_LIT>'))<EOL>self.delete_network_db(dummy_router_dict.get('<STR_LIT>'))<EOL>return ret<EOL>
Function to delete a dummy interface of a router.