Revert "systemd: enable lingering on ceres"

This reverts commit 04acc8b6.

recipes-core/systemd/systemd_%.bbappend

@@ -23,13 +23,4 @@ do_install_append() {
     install -m 0644 ${WORKDIR}/dbus.conf ${D}/etc/systemd/system/user@.service.d/dbus.conf
 }
 
-pkg_postinst_${PN}() {
-#!/bin/sh -e
-if [ x"$D" = "x" ]; then
-    loginctl enable-linger ceres
-else
-    exit 1
-fi
-}
-
 PACKAGECONFIG_append += "pam"