x11-servers/xwayland-devel: unbreak fetch due to repo growth

fetch: https://github.com/freedesktop/xorg-xserver/commit/42e34498f87a.patch: size mismatch: expected 10298, actual 10310

This reverts commit 4055fc841fafb6b3d2aa3fa196de8a99b1e4d4b5.

PR: 260750
Reported by: amdmi3