net: ti: icssg-prueth: 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>
Reviewed-by: Roger Quadros <rogerq@kernel.org>
Reviewed-by: MD Danish Anwar <danishanwar@ti.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

Author: gal-pressman

drivers/net/ethernet/ti/icssg/icssg_ethtool.c

@@ -119,8 +119,6 @@ static int emac_get_ts_info(struct net_device *ndev,
 		SOF_TIMESTAMPING_TX_HARDWARE |
 		SOF_TIMESTAMPING_TX_SOFTWARE |
 		SOF_TIMESTAMPING_RX_HARDWARE |
-		SOF_TIMESTAMPING_RX_SOFTWARE |
-		SOF_TIMESTAMPING_SOFTWARE |
 		SOF_TIMESTAMPING_RAW_HARDWARE;
 
 	info->phc_index = icss_iep_get_ptp_clock_idx(emac->iep);