[PATCH] binder: Remove incorrect comment about vm_insert_page() behavior

[Christian Brauner]

On Fri, Oct 18, 2019 at 05:39:46PM +0200, Jann Horn wrote:
> vm_insert_page() does increment the page refcount, and just to be sure,
> I've confirmed it by printing page_count(page[0].page_ptr) before and after
> vm_insert_page(). It's 1 before, 2 afterwards, as expected.
> 
> Signed-off-by: Jann Horn <jannh at google.com>

Seems this has always been the case since its introduction:
a145dd411eb2 ("VM: add "vm_insert_page()" function")

Acked-by: Christian Brauner <christian.brauner at ubuntu.com>