net: fec: get rid of redundant code in fec_ptp_set()

Code of the form "if(x) x = 0" replaced with "x = 0".

Code of the form "if(x == a) x = a" removed.
Signed-off-by: Sergey Organov <sorganov@gmail.com>
Acked-by: Fugang Duan <fugang.duan@nxp.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

drivers/net/ethernet/freescale/fec_ptp.c

@@ -473,9 +473,7 @@ int fec_ptp_set(struct net_device *ndev, struct ifreq *ifr)
 
 	switch (config.rx_filter) {
 	case HWTSTAMP_FILTER_NONE:
-		if (fep->hwts_rx_en)
 		fep->hwts_rx_en = 0;
-		config.rx_filter = HWTSTAMP_FILTER_NONE;
 		break;
 
 	default: