x11-servers/xwayland-devel: drop direct consumers after a26e05c85c30

• Upstream releases frequently and independently from xorg-server
• Both ports have the same features and defaults
• Newer snapshots may decrease stability or break HiDPI patches

Note, wlroots-devel cannot stay on xwayland-devel without introducing
package conflicts when installing hyprland + cage/gamescope.

This reverts commit 4c432d12bbb40a1c91963af26986002e9c388f29.
This reverts commit 09721d1275eea4199d7b39b25d962017187c82a0.