LU-9586 tests: remove replay-dual 15c from ALWAYS_EXCEPT

LU-9586 tests: remove replay-dual 15c from ALWAYS_EXCEPT

replay-dual test 15c "remove multiple OST orphans" was added
to the ALWAYS_EXCEPT list because of bugzilla 10124. Remove
replay-dual test 15c from ALWAYS_EXCEPT list.

Test-Parameters: trivial testlist=replay-dual
Signed-off-by: dilip krishnagiri <dilipx.krishnagiri@intel.com>
Signed-off-by: James Nunez <james.a.nunez@intel.com>
Change-Id: I88866e485fdb037575ee4a72ed38aaa4b465df7d
Reviewed-on: https://review.whamcloud.com/27396
Tested-by: Jenkins
Tested-by: Maloo <hpdd-maloo@intel.com>
Reviewed-by: Saurabh Tandan <saurabh.tandan@intel.com>
Reviewed-by: Cliff White <cliff.white@intel.com>
Reviewed-by: Oleg Drokin <oleg.drokin@intel.com>