i40iw: remove unused 'timeval' struct member

There is a stale entry in i40iw_cm_tcp_context that apparently
was copied from the 'nes' driver but never used in i40iw.
I'm trying to kill off all users of timeval as part of the
y2038-safety work, so let's just remove this one.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Shiraz Saleem <shiraz.saleem@intel.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>

drivers/infiniband/hw/i40iw/i40iw_cm.h

@@ -276,8 +276,6 @@ struct i40iw_cm_tcp_context {
 	u32 mss;
 	u8 snd_wscale;
 	u8 rcv_wscale;
-
-	struct timeval sent_ts;
 };
 
 enum i40iw_cm_listener_state {