alinux: mm: thp: remove deferred split queue from mem_cgroup

in commit 295949f0 ("alinux: mm: thp: move deferred split queue
to memcg's nodeinfo"), we actually failed to remove deferred split
queue from mem_cgroup unexpectedly. Fix it by manually removing it
again.

Fixes: 295949f0 ("alinux: mm: thp: move deferred split queue to memcg's nodeinfo")
Signed-off-by: NCaspar Zhang <caspar@linux.alibaba.com>
Reviewed-by: NYang Shi <yang.shi@linux.alibaba.com>

include/linux/memcontrol.h

@@ -331,9 +331,6 @@ struct mem_cgroup {
 	struct idle_page_stats idle_stats[KIDLED_STATS_NR_TYPE];
 #endif
 
-#ifdef CONFIG_TRANSPARENT_HUGEPAGE
-	struct deferred_split deferred_split_queue;
-#endif
 	ALI_HOTFIX_RESERVE(1)
 	ALI_HOTFIX_RESERVE(2)
 	ALI_HOTFIX_RESERVE(3)