LU-10931 tests: stop running recovery-small 136

LU-10931 tests: stop running recovery-small 136

recovery-small test 136 hangs on MDS mount with multiple
MDSs.  We need to stop running this test until we find a
solution for this problem.

Test-Parameters: trivial mdscount=2 mdtcount=4 testlist=recovery-small

Signed-off-by: James Nunez <jnunez@whamcloud.com>
Change-Id: I5364efc8b6fe1ea9b3c3920121a8fab6ac03bd05
Reviewed-on: https://review.whamcloud.com/35325
Tested-by: jenkins <devops@whamcloud.com>
Tested-by: Maloo <maloo@whamcloud.com>
Reviewed-by: Andreas Dilger <adilger@whamcloud.com>
Reviewed-by: Patrick Farrell <pfarrell@whamcloud.com>