scsi: mpi3mr: Fix expander node leak in mpi3mr_remove()

scsi: mpi3mr: Fix expander node leak in mpi3mr_remove()

[ Upstream commit 6d290ac5b58a86bb46b3866e1815dc0d083ce4d2 ]

Add a missing resource clean up in .remove.

Fixes: 38e56ff115e1 ("scsi: mpi3mr: Add expander devices to STL")
Signed-off-by: Tomas Henzl <thenzl@redhat.com>
Link: https://lore.kernel.org/r/20230302234336.25456-7-thenzl@redhat.com
Acked-by: Sathya Prakash Veerichetty <sathya.prakash@broadcom.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>