gl-renderer: remove print_egl_error_state

Nothing uses this, but the implementing function is used by gl-renderer
internally.

Signed-off-by: Pekka Paalanen <pekka.paalanen@collabora.com>
2 jobs for mr/gl-cleanups in 1 minute and 44 seconds (queued for 3 seconds)
Status Job ID Name Coverage
  Container Prep
passed #683728
container_prep

00:00:32

 
  Build
passed #683729
build-native-meson

00:01:11