gnome-session: remove workarounds that aren't needed anymore

srcpkgs/gnome-session/patches/patch-gnome-session_main_c.diff

@@ -1,15 +0,0 @@
-$OpenBSD: patch-gnome-session_main_c,v 1.13 2015/04/03 12:43:19 ajacoutot Exp $
-
-XXX no rpmatch(3) on OpenBSD
-
---- gnome-session/main.c.orig	Fri Apr  3 14:18:31 2015
-+++ gnome-session/main.c	Fri Apr  3 14:19:42 2015
-@@ -260,7 +260,7 @@ main (int argc, char **argv)
- 
-         debug_string = g_getenv ("GNOME_SESSION_DEBUG");
-         if (debug_string != NULL) {
--                debug = rpmatch (debug_string) == TRUE || atoi (debug_string) == 1;
-+                debug = atoi (debug_string) == 1;
-         }
- 
-         error = NULL;

srcpkgs/gnome-session/template

@@ -2,9 +2,9 @@
 pkgname=gnome-session
 version=3.28.0
 revision=1
-build_style=gnu-configure
+build_style=meson
-configure_args="--disable-schemas-compile"
+hostmakedepends="pkg-config intltool libxslt docbook-xsl glib-devel xmlto"
-hostmakedepends="pkg-config intltool libxslt docbook-xsl glib-devel"
+configure_args="-Dsystemd_journal=false"
 makedepends="upower-devel json-glib-devel gtk+3-devel libSM-devel
  startup-notification-devel libXtst-devel dbus-glib-devel elogind-devel
  gsettings-desktop-schemas-devel gnome-desktop-devel"
@@ -16,10 +16,3 @@ homepage="http://www.gnome.org"
 license="GPL-2, LGPL-2.1"
 distfiles="${GNOME_SITE}/$pkgname/${version%.*}/$pkgname-$version.tar.xz"
 checksum=0b803d9a6011f5d49d9b4c3c15390e8b6f36ef710f4dc47756109f982455acd1
-
-pre_configure() {
-	sed -i "s/^#ifdef HAVE_SYSTEMD/#if 0/" \
-		gnome-session/main.c \
-		gnome-session/gsm-manager.c \
-		gnome-session/gsm-autostart-app.c
-}