systemd: remove ${PN}-xorg-xinitrc

In 50-systemd-user.sh which is packaged to sub-package
${PN}-xorg-xinitrc, it exports environment variables DISPLAY and
XAUTHORITY to systemd. It fails to start systemd services which require
these environment variables such as thunar.service:

root@qemux86-64:~# systemctl --user status thunar
● thunar.service - Thunar file manager
Loaded: loaded (/usr/lib/systemd/user/thunar.service; disabled; vendor preset: enabled)
Active: inactive (dead)
Docs: man:Thunar(1)

Nov 14 07:47:29 qemux86-64 systemd[352]: Starting Thunar file manager...
Nov 14 07:47:29 qemux86-64 Thunar[873]: cannot open display:
Nov 14 07:47:29 qemux86-64 systemd[352]: thunar.service: Main process exited, code=exited, status=1/FAILURE
Nov 14 07:47:29 qemux86-64 systemd[352]: thunar.service: Failed with result 'exit-code'.
Nov 14 07:47:29 qemux86-64 systemd[352]: Failed to start Thunar file manager.

It is not convenient to make all such kind of packages require package
${PN}-xorg-xinitrc, so remove the sub-package and merge the only file
provided by it to main package.

No recipe depends on ${PN}-xorg-xinitrc in oe-core and meta-openembedded
now, so no need to set rprovides for it.

(From OE-Core rev: 9b7d65aa52171cb559cc12ca3fdeaee54b9022c1)

Signed-off-by: Kai Kang <kai.kang@windriver.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

meta/recipes-core/systemd/systemd_243.bb

@@ -317,7 +317,6 @@ PACKAGES =+ "\
     ${PN}-rpm-macros \
     ${PN}-binfmt \
     ${PN}-zsh-completion \
-    ${PN}-xorg-xinitrc \
     ${PN}-container \
     ${PN}-journal-gatewayd \
     ${PN}-journal-upload \
@@ -379,8 +378,6 @@ FILES_${PN}-kernel-install = "${bindir}/kernel-install \
 FILES_${PN}-rpm-macros = "${exec_prefix}/lib/rpm \
                          "
 
-FILES_${PN}-xorg-xinitrc = "${sysconfdir}/X11/xinit/xinitrc.d/*"
-
 FILES_${PN}-zsh-completion = "${datadir}/zsh/site-functions"
 
 FILES_${PN}-binfmt = "${sysconfdir}/binfmt.d/ \
@@ -529,6 +526,7 @@ FILES_${PN} = " ${base_bindir}/* \
                 ${sysconfdir}/xdg/ \
                 ${sysconfdir}/init.d/README \
                 ${sysconfdir}/resolv-conf.systemd \
+                ${sysconfdir}/X11/xinit/xinitrc.d/* \
                 ${rootlibexecdir}/systemd/* \
                 ${systemd_unitdir}/* \
                 ${base_libdir}/security/*.so \