Accepting request 396946 from GNOME:Next

- Drop insserv_cleanup call in %postun and %insserv_prereq macro
  in preamble.

OBS-URL: https://build.opensuse.org/request/show/396946
OBS-URL: https://build.opensuse.org/package/show/GNOME:Factory/gdm?expand=0&rev=314

gdm.spec

@@ -98,7 +98,6 @@ Requires(post): dconf
 Recommends:     orca
 # For groupadd, useradd, usermod
 PreReq:         pwdutils
-PreReq:         %insserv_prereq
 Recommends:     %{name}-lang
 Recommends:     iso-codes
 Provides:       gdm2 = %{version}
@@ -299,7 +298,6 @@ fi
 dconf update
 
 %postun
-%insserv_cleanup
 %glib2_gsettings_schema_postun
 %icon_theme_cache_postun