KVM: remove redundant initialization of page->private

The prep_new_page() in page allocator calls set_page_private(page, 0).
So we don't need to reinitialize private of page.

Signed-off-by: Minchan Kim <minchan.kim@gmail.com>
Cc: Avi Kivity<avi@redhat.com>
Signed-off-by: Avi Kivity <avi@redhat.com>
diff --git a/arch/x86/kvm/mmu.c b/arch/x86/kvm/mmu.c
index 3af2dfd..4455ddb 100644
--- a/arch/x86/kvm/mmu.c
+++ b/arch/x86/kvm/mmu.c
@@ -326,7 +326,6 @@
 		page = alloc_page(GFP_KERNEL);
 		if (!page)
 			return -ENOMEM;
-		set_page_private(page, 0);
 		cache->objects[cache->nobjs++] = page_address(page);
 	}
 	return 0;