Revert "LU-11816 lnet: setup health timeout defaults"

Revert "LU-11816 lnet: setup health timeout defaults"

This is causing frequent assertion failures like below:
LNetError: 1701:0:(lib-move.c:3670:lnet_monitor_thr_stop()) ASSERTION( rc == 0 ) failed:
[  378.662897] LNetError: 1701:0:(lib-move.c:3670:lnet_monitor_thr_stop()) LBUG
[  378.665136] Pid: 1701, comm: rmmod 3.10.0-7.6-debug #1 SMP Fri Jul 12 02:40:17 EDT 2019
[  378.667455] Call Trace:
[  378.668302]  [<ffffffffa01927dc>] libcfs_call_trace+0x8c/0xc0 [libcfs]
[  378.670463]  [<ffffffffa019288c>] lbug_with_loc+0x4c/0xa0 [libcfs]
[  378.672398]  [<ffffffffa021d036>] lnet_monitor_thr_stop+0xe6/0x120 [lnet]
[  378.674727]  [<ffffffffa01fde8a>] LNetNIFini+0x6a/0x110 [lnet]
[  378.676532]  [<ffffffffa0622b15>] ptlrpc_ni_fini+0x175/0x200 [ptlrpc]
[  378.678598]  [<ffffffffa0622e53>] ptlrpc_exit_portals+0x13/0x20 [ptlrpc]
[  378.680850]  [<ffffffffa06b59aa>] ptlrpc_exit+0x22/0x678 [ptlrpc]
[  378.683338]  [<ffffffff81108aab>] SyS_delete_module+0x19b/0x300
[  378.684809]  [<ffffffff817c8e15>] system_call_fastpath+0x1c/0x21
[  378.686727]  [<ffffffffffffffff>] 0xffffffffffffffff
[  378.688144] Kernel panic - not syncing: LBUG

This reverts commit db81f3f293dbc0c9dba90ea1153f554b33fbb80b.

Change-Id: Id12f9d3ec4af3ab37158b3e6049d2ea971d86913
Signed-off-by: Oleg Drokin <green@whamcloud.com>
Reviewed-on: https://review.whamcloud.com/36173