LU-9120 lnet: remove duplicate timeout mechanism

LU-9120 lnet: remove duplicate timeout mechanism

Remove the duplicate GET/PUT timeout mechanism currently implemented
for discovery, as it has been replaced by a more generic timeout
mechanism for all GET/PUT messages.

Test-Parameters: forbuildonly
Signed-off-by: Amir Shehata <ashehata@whamcloud.com>
Change-Id: I28efae8c1fca6fc07fcaad4bfacf123b00ff887d
Reviewed-on: https://review.whamcloud.com/32992
Reviewed-by: Sonia Sharma <sharmaso@whamcloud.com>
Reviewed-by: Olaf Weber <olaf.weber@hpe.com>
Tested-by: Jenkins