[gdm] manager: drop some erroneous code

[Ray Strode <halfline src gnome org>]

commit 09bf96930a16d0efff5cc6301e828f7d17b28530
Author: Ray Strode <rstrode redhat com>
Date:   Fri Mar 31 14:56:46 2017 -0400

    manager: drop some erroneous code
    
    This is commit 82296a3350b64d0ed5ae3b9f6983466c60dd8a53 all over
    again.  The code snuck back in during a refactor !
    
    https://bugzilla.gnome.org/show_bug.cgi?id=780787

 daemon/gdm-manager.c |   18 ------------------
 1 files changed, 0 insertions(+), 18 deletions(-)
---
diff --git a/daemon/gdm-manager.c b/daemon/gdm-manager.c
index d4843a6..8169f2b 100644
--- a/daemon/gdm-manager.c
+++ b/daemon/gdm-manager.c
@@ -1935,25 +1935,7 @@ on_session_client_disconnected (GdmSession   *session,
                                 GPid          pid_of_client,
                                 GdmManager   *manager)
 {
-        GdmDisplay *display;
-        gboolean display_is_local;
-
         g_debug ("GdmManager: client disconnected");
-
-        display = get_display_for_user_session (session);
-
-        if (display == NULL) {
-                return;
-        }
-
-        g_object_get (G_OBJECT (display),
-                      "is-local", &display_is_local,
-                      NULL);
-
-        if ( ! display_is_local && gdm_session_is_running (session)) {
-                gdm_display_unmanage (display);
-                gdm_display_finish (display);
-        }
 }
 
 typedef struct