LU-10070 lod: layout_del memleak

LU-10070 lod: layout_del memleak

A component may have been declared on a pool or on a specific set
of OSTs, however only the first component is INIT'ed at the beginning.
lod_layout_del should take care about these allocations independently
of the existent striping

Cray-bug-id: LUS-2528
Signed-off-by: Vitaly Fertman <c17818@cray.com>
Change-Id: I7069154ec6b3e64cd945231829c19c4c6920c030
Reviewed-on: https://review.whamcloud.com/35270
Reviewed-by: Patrick Farrell <pfarrell@whamcloud.com>
Tested-by: Jenkins
Reviewed-by: Andreas Dilger <adilger@whamcloud.com>
Tested-by: Maloo <maloo@whamcloud.com>
Reviewed-by: Oleg Drokin <green@whamcloud.com>