flow_indr_block_cb_remove
flow_indr_block_cb_remove(block_cb, f);
flow_indr_block_cb_remove(block_cb, f);
flow_indr_block_cb_remove(block_cb, f);
flow_indr_block_cb_remove(block_cb, f);
flow_indr_block_cb_remove(block_cb, tcb);