mm: unexport ksize

This patch removes the obsolete and no longer used exports of ksize.
Signed-off-by: Adrian Bunk <bunk@kernel.org>
Signed-off-by: Pekka Enberg <penberg@cs.helsinki.fi>

mm/slab.c

@@ -4472,4 +4472,3 @@ size_t ksize(const void *objp)
 
 	return obj_size(virt_to_cache(objp));
 }
-EXPORT_SYMBOL(ksize);

mm/slob.c

@@ -519,7 +519,6 @@ size_t ksize(const void *block)
 	else
 		return sp->page.private;
 }
-EXPORT_SYMBOL(ksize);
 
 struct kmem_cache {
 	unsigned int size, align;

mm/slub.c

@@ -2715,7 +2715,6 @@ size_t ksize(const void *object)
 	 */
 	return s->size;
 }
-EXPORT_SYMBOL(ksize);
 
 void kfree(const void *x)
 {