staging: android: ion: Nuke ion_page_pool_init

ion_page_pool.c now is used to apply pool APIs for system heap, which do
not need do any initial at device_initcall. Therefore ion_page_pool_init
can be nuked.
Signed-off-by: Yisheng Xie <xieyisheng1@huawei.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/android/ion/ion_page_pool.c

@@ -6,7 +6,6 @@
  */
 
 #include <linux/list.h>
-#include <linux/init.h>
 #include <linux/slab.h>
 #include <linux/swap.h>
 
@@ -158,9 +157,3 @@ void ion_page_pool_destroy(struct ion_page_pool *pool)
 {
 	kfree(pool);
 }
-
-static int __init ion_page_pool_init(void)
-{
-	return 0;
-}
-device_initcall(ion_page_pool_init);