gfs2: Partially revert gfs2_inode_lookup change

gfs2: Partially revert gfs2_inode_lookup change

[ Upstream commit 88f4a9f813c549f6b8a6fbf12030949b48a4d5a4 ]

Commit c412a97cf6c5 changed delete_work_func() to always perform an
inode lookup when gfs2_try_evict() fails.  This doesn't make sense as a
gfs2_try_evict() failure indicates that the inode is likely still in
use.  Revert that change.

Fixes: c412a97cf6c5 ("gfs2: Use TRY lock in gfs2_inode_lookup for UNLINKED inodes")
Signed-off-by: Andreas Gruenbacher <agruenba@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>