x11-servers/xwayland-devel: drop HiDPI patches to unblock updates
- Rootful HiDPI[1] introduces non-trivial conflicts to rootless HiDPI
- AUR tracks Xwayland releases, so cannot help with rebases
- Sway should probably adopt force_zero_scaling from Hyprland >= 0.27
[1] https://gitlab.freedesktop.org/xorg/xserver/-/merge_requests/1197