rtl8xxxu: Remove unncessary semicolon

This removes an superfluous semicolon.
Reported-by: Fengguang Wu <fengguang.wu@intel.com>
Signed-off-by: Jes Sorensen <Jes.Sorensen@redhat.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>

drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu.c

@@ -7195,7 +7195,7 @@ static void rtl8xxxu_tx(struct ieee80211_hw *hw,
 			tx_desc->txdw3 |=
 				cpu_to_le32(TXDESC_HW_RTS_ENABLE_8723B);
 		}
-	};
+	}
 
 	rtl8xxxu_calc_tx_desc_csum(tx_desc);