Revert "UPSTREAM: mm: page_alloc: move free pages when converting block during isolation"

This reverts commit fd83b273bd.

Change-Id: I388ca9659802fbed1668c22b0c1f963d2c656a70
Bug: 420771453
Signed-off-by: Kalesh Singh <kaleshsingh@google.com>

mm/page_alloc.c

@@ -2793,12 +2793,9 @@ int __isolate_free_page(struct page *page, unsigned int order)
 			 * Only change normal pageblocks (i.e., they can merge
 			 * with others)
 			 */
-			if (migratetype_is_mergeable(mt)) {
+			if (migratetype_is_mergeable(mt))
 				set_pageblock_migratetype(page,
 							  MIGRATE_MOVABLE);
-				move_freepages_block(zone, page,
-						     MIGRATE_MOVABLE, NULL);
-			}
 		}
 	}