mm: Remove slab destructors from kmem_cache_create().

Slab destructors were no longer supported after Christoph's
c59def9f22 change. They've been
BUGs for both slab and slub, and slob never supported them
either.

This rips out support for the dtor pointer from kmem_cache_create()
completely and fixes up every single callsite in the kernel (there were
about 224, not including the slab allocator definitions themselves,
or the documentation references).

Signed-off-by: Paul Mundt <lethal@linux-sh.org>

net/dccp/ccid.c

@@ -69,7 +69,7 @@ static struct kmem_cache *ccid_kmem_cache_create(int obj_size, const char *fmt,.
 	if (slab_name == NULL)
 		return NULL;
 	slab = kmem_cache_create(slab_name, sizeof(struct ccid) + obj_size, 0,
-				 SLAB_HWCACHE_ALIGN, NULL, NULL);
+				 SLAB_HWCACHE_ALIGN, NULL);
 	if (slab == NULL)
 		kfree(slab_name);
 	return slab;