sfc: Remove PTP code for Siena

rx_tx_inline is now always true.
The special event list is no longer needed, event handling is always
inline.
Event MCDI_EVENT_CODE_PTP_RX is no longer needed.
Signed-off-by: Martin Habets <habetsm.xilinx@gmail.com>
Acked-by: Edward Cree <ecree.xilinx@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/net/ethernet/sfc/mcdi.c

@@ -1357,7 +1357,6 @@ void efx_mcdi_process_event(struct efx_channel *channel,
 			efx->type->sriov_flr(efx,
 					     MCDI_EVENT_FIELD(*event, FLR_VF));
 		break;
-	case MCDI_EVENT_CODE_PTP_RX:
 	case MCDI_EVENT_CODE_PTP_FAULT:
 	case MCDI_EVENT_CODE_PTP_PPS:
 		efx_ptp_event(efx, event);