cxgb4: remove unneeded semicolon for switch block

Semicolon is not required at the end of switch block. So, remove it.

Addresses coccinelle warning:
drivers/net/ethernet/chelsio/cxgb4/sge.c:2260:2-3: Unneeded semicolon

Fixes: 4846d533 ("cxgb4: add Tx and Rx path for ETHOFLD traffic")
Reported-by: Nkbuild test robot <lkp@intel.com>
Signed-off-by: NRahul Lakkireddy <rahul.lakkireddy@chelsio.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

drivers/net/ethernet/chelsio/cxgb4/sge.c

@@ -2283,7 +2283,7 @@ static void ethofld_xmit(struct net_device *dev, struct sge_eosw_txq *eosw_txq)
 	case CXGB4_EO_STATE_CLOSED:
 	default:
 		return;
-	};
+	}
 
 	while (pktcount--) {
 		skb = eosw_txq_peek(eosw_txq);