blk-mq: Clean up all_q_list on request_queue deletion

blk-mq: Clean up all_q_list on request_queue deletion

Entries were not being removed from all_q_list when corresponding request
queue structs were freed with subsequent embedded list pointers being
trashed when the queue memory was re-allocated. Additionally, due to use of
cached allocation pool (kmem_cache_alloc_node), the same data structure
would be reinserted into the same list twice which cannot work given the
kernel linked list implementation.

Signed-off-by: Chris Hyser <chris.hyser@oracle.com>
Reviewed-by: Shannon Nelson <shannon.nelson@oracle.com>
Orabug: 25569331
Signed-off-by: Allen Pais <allen.pais@oracle.com>