wayland: Don't call gdk_display_sync()
It is not necessary.
It only exists because in commit 3887548d the Wayland Vulkan code was copy/pasted from X11.
Fixes #7022 (closed) Fixes #7025 (closed)
It is not necessary.
It only exists because in commit 3887548d the Wayland Vulkan code was copy/pasted from X11.
Fixes #7022 (closed) Fixes #7025 (closed)