staging: rtl8712: fix else after break or return warning

This patch fixes checkpatch.pl warning.
WARNING: else is not generally useful after a break or return
Signed-off-by: NDogukan Ergun <dogukan.ergun@gmail.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/rtl8712/rtl871x_ioctl_linux.c

@@ -813,7 +813,6 @@ static int r871x_wx_set_pmkid(struct net_device *dev,
 	case IW_PMKSA_ADD:
 		if (!memcmp(strIssueBssid, strZeroMacAddress, ETH_ALEN))
 			return intReturn;
-		else
 		intReturn = true;
 		blInserted = false;
 		/* overwrite PMKID */