Revert xorg/xserver!235

Caused assertion failures / crashes with Xorg.

Closes: xorg/xserver#916
3 jobs for revert-235 in 8 minutes and 12 seconds (queued for 32 seconds)
Status Name Job ID Coverage
  Docker Image
passed debian-testing #740940

00:00:33

 
  Build And Test
passed autotools-build-and-test #740941

00:06:03

passed meson-build-and-test #740942

00:01:34