EX-9867 test: unlimit expected number of keepalive msgs

EX-9867 test: unlimit expected number of keepalive msgs

Sometimes test_165g may be internally delayed and
the number of keepalive messages from ofd_access_log_reader
may be unexpectably big.
To fix, remove the verified upper boundary of the keepalive
message counter and make test_165g to expect unlimited number
of such messages.

Test-Parameters: trivial testlist=sanity env=ONLY="165g",ONLY_REPEAT=20
Signed-off-by: Alexandre Ioffe <aioffe@ddn.com>
Change-Id: I8afcfd3c3e52fda229ef81491259bdc600947bd3
Reviewed-on: https://review.whamcloud.com/c/ex/lustre-release/+/55312
Tested-by: jenkins <devops@whamcloud.com>
Tested-by: Maloo <maloo@whamcloud.com>
Reviewed-by: Vitaliy Kuznetsov <vkuznetsov@ddn.com>
Reviewed-by: Andreas Dilger <adilger@whamcloud.com>