scsi: core: Revert "Simplify LLD module reference counting"

scsi: core: Revert "Simplify LLD module reference counting"

Revert the patch series "Call blk_mq_free_tag_set() earlier" because it
introduces a deadlock if the scsi_remove_host() caller holds a reference on
a device, target or host.

Link: https://lore.kernel.org/r/20220821220502.13685-3-bvanassche@acm.org
Fixes: 1a9283782df2 ("scsi: core: Simplify LLD module reference counting")
Reported-by: syzbot+bafeb834708b1bb750bc@syzkaller.appspotmail.com
Tested-by: Kenneth R. Crudup <kenny@panix.com>
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>