You've manually removed it then, before it got the update for #1572855 which would've un-diverted the file. There's no other way to explain it..
** Changed in: xorg (Ubuntu) Status: New => Invalid -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1632593 Title: Xorg does not utilize the 3D graphics acceleration capabilities of my device To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xorg/+bug/1632593/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs