bnx2x: Remove setting of RX software timestamp

The responsibility for reporting of RX software timestamp has moved to
the core layer (see __ethtool_get_ts_info()), remove usage from the
device drivers.
Reviewed-by: Carolina Jubran <cjubran@nvidia.com>
Reviewed-by: Rahul Rameshbabu <rrameshbabu@nvidia.com>
Signed-off-by: Gal Pressman <gal@nvidia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/net/ethernet/broadcom/bnx2x/bnx2x_ethtool.c

@@ -3640,16 +3640,12 @@ static int bnx2x_get_ts_info(struct net_device *dev,
 
 	if (bp->flags & PTP_SUPPORTED) {
 		info->so_timestamping = SOF_TIMESTAMPING_TX_SOFTWARE |
-					SOF_TIMESTAMPING_RX_SOFTWARE |
-					SOF_TIMESTAMPING_SOFTWARE |
 					SOF_TIMESTAMPING_TX_HARDWARE |
 					SOF_TIMESTAMPING_RX_HARDWARE |
 					SOF_TIMESTAMPING_RAW_HARDWARE;
 
 		if (bp->ptp_clock)
 			info->phc_index = ptp_clock_index(bp->ptp_clock);
-		else
-			info->phc_index = -1;
 
 		info->rx_filters = (1 << HWTSTAMP_FILTER_NONE) |
 				   (1 << HWTSTAMP_FILTER_PTP_V1_L4_EVENT) |