net: enetc: remove unneeded xdp_do_flush_map()

xdp_do_redirect already contains:
-> dev_map_enqueue
   -> __xdp_enqueue
      -> bq_enqueue
         -> bq_xmit_all // if we have more than 16 frames

So the logic from enetc will never be hit, because ENETC_DEFAULT_TX_WORK
is 128.

Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/net/ethernet/freescale/enetc/enetc.c

@@ -1324,11 +1324,6 @@ static int enetc_clean_rx_ring_xdp(struct enetc_bdr *rx_ring,
 				rx_ring->stats.xdp_redirect++;
 			}
 
-			if (unlikely(xdp_redirect_frm_cnt > ENETC_DEFAULT_TX_WORK)) {
-				xdp_do_flush_map();
-				xdp_redirect_frm_cnt = 0;
-			}
-
 			break;
 		default:
 			bpf_warn_invalid_xdp_action(xdp_act);