Build: remove patch to build with older meson version for Wayland

Revert part of [0] which was required to build with meson 0.55.1,
rocky8 has version 0.58.2.

[0]; 8bb084cda3c9079ddb55288bd03b0a10df88bf59

build_files/build_environment/cmake/wayland.cmake

@@ -5,7 +5,6 @@ ExternalProject_Add(external_wayland
   DOWNLOAD_DIR ${DOWNLOAD_DIR}
   URL_HASH ${WAYLAND_HASH_TYPE}=${WAYLAND_HASH}
   PREFIX ${BUILD_DIR}/wayland
-  PATCH_COMMAND ${PATCH_CMD} -d ${BUILD_DIR}/wayland/src/external_wayland < ${PATCH_DIR}/wayland.diff
   # Use `-E` so the `PKG_CONFIG_PATH` can be defined to link against our own LIBEXPAT & LIBXML2.
   #
   # NOTE: passing link args "ffi/lib" should not be needed, but

build_files/build_environment/patches/wayland.diff

@@ -1,11 +0,0 @@
---- meson.build.orig	2022-06-30 22:59:11.000000000 +0100
-+++ meson.build	2022-09-27 13:21:26.428517668 +0100
-@@ -2,7 +2,7 @@
- 	'wayland', 'c',
- 	version: '1.21.0',
- 	license: 'MIT',
--	meson_version: '>= 0.56.0',
-+	meson_version: '>= 0.55.1',
- 	default_options: [
- 		'warning_level=2',
- 		'buildtype=debugoptimized',