LU-15022 revert: "LU-14997 tests: Register stack_trap for sanity/104c"

LU-15022 revert: "LU-14997 tests: Register stack_trap for sanity/104c"

This reverts commit 59b32113313c3566e5f3797bca404a5b19d5e305
since it caused constant test failures for ZFS backends.

Change-Id: I195cc483166294dbf97be50a9b747c8a2b534799
Test-Parameters: trivial fstype=zfs testlist=sanity env=ONLY=104,ONLY_REPEAT=20
Reviewed-on: https://review.whamcloud.com/45008
Tested-by: jenkins <devops@whamcloud.com>
Tested-by: Andreas Dilger <adilger@whamcloud.com>
Reviewed-by: Arshad Hussain <arshad.hussain@aeoncomputing.com>
Reviewed-by: James Simmons <jsimmons@infradead.org>
Reviewed-by: Oleg Drokin <green@whamcloud.com>