qubes-vm-gui: do not use systemctl for qubes-session

qubes-vm-gui/APKBUILD

@@ -7,7 +7,7 @@ subpackages="
 	qubes-vm-pipewire
 	$pkgname-openrc"
 pkgver=4.2.8
-pkgrel=1
+pkgrel=2
 _gittag="v$pkgver"
 pkgdesc="The Qubes GUI Agent for AppVMs"
 arch="x86_64"
@@ -52,6 +52,7 @@ source="
 	qubes-gui-agent.openrc
 	qubes-sessions.sh
 	qubes-gui-agent.pam
+	qubes-sessions_do-not-use-systemd.patch
 	"
 builddir="$srcdir"/qubes-gui-agent-linux-${_gittag/v}
 _qubes_backend_vmm=xen
@@ -123,4 +124,5 @@ f0bbb936e14689d0cbced2f564b8911f9287c0217616f02f3bd0c3060e516d080ad538219f089f58
 68d01e594296e18d54d8eaa17863451c3ac121e4fcacf98b64db14166bdcf38aa66f1c3659c5014c0a9cc25b5368df66f8c642b8e7af59da8d2a5ad97da9a194  qubes-gui-agent.openrc
 bd707f7956f58c2bb24ccb9adad1381c069e70820fcb1b01b09dc88570d9df00e0dc92a9ac3b242f828314568d5487257566a6fc61e75e62e010b7e4871f9ea0  qubes-sessions.sh
 b512d691f2a6b11fc329bf91dd05ca9c589bbd444308b27d3c87c75262dedf6afc68a9739229249a4bd3d0c43cb1f871eecbb93c4fe559e0f38bdabbffd06ad7  qubes-gui-agent.pam
+5d44bed65772e0300cfdb5960327ccff923159f1c0c6b980a3b37758a7330f5d8befa3c053990f6e5e7d2e71bf0eca047040439446a8b91bb1c2672e9e1497a0  qubes-sessions_do-not-use-systemd.patch
 "

qubes-vm-gui/qubes-sessions_do-not-use-systemd.patch

@@ -0,0 +1,21 @@
+diff --git a/appvm-scripts/usrbin/qubes-session.orig b/appvm-scripts/usrbin/qubes-session
+index cacac4b..e5bedc2 100755
+--- a/appvm-scripts/usrbin/qubes-session.orig
++++ b/appvm-scripts/usrbin/qubes-session
+@@ -27,16 +27,6 @@
+ 
+ loginctl activate "$XDG_SESSION_ID"
+ 
+-# Now import the environment from the systemd user session.
+-# This is necessary to enable users to configure their
+-# Qubes environment using the standard environment.d
+-# facility.  Documentation for the facility is at:
+-# https://www.freedesktop.org/software/systemd/man/environment.d.html
+-set -a # export all variables
+-env=$(systemctl --user show-environment) && eval "$env" || exit
+-set +a
+-
+-
+ if qsvc guivm-gui-agent; then
+     if [ -e "$HOME/.xinitrc" ]; then
+         . "$HOME/.xinitrc"