[gnome-settings-daemon] build: Don't print out unused SESSION_TRACKING variable

[Kalev Lember <klember src gnome org>]

commit 4bc584bb10f4ed52babf7745dcb6bb9b7faecc65
Author: Kalev Lember <kalevlember gmail com>
Date:   Tue Apr 1 21:49:22 2014 +0200

    build: Don't print out unused SESSION_TRACKING variable
    
    A remnant of the time when gnome-settings-daemon supported both
    ConsoleKit and logind session tracking.

 configure.ac |    1 -
 1 files changed, 0 insertions(+), 1 deletions(-)
---
diff --git a/configure.ac b/configure.ac
index c013e8e..7164e75 100644
--- a/configure.ac
+++ b/configure.ac
@@ -570,7 +570,6 @@ echo "
         cflags:                   ${CFLAGS}
         Maintainer mode:          ${USE_MAINTAINER_MODE}
 
-        Session tracking:         ${SESSION_TRACKING}
         LCMS DICT support:        ${have_new_lcms}
         IBus support:             ${enable_ibus}
         Libnotify support:        ${have_libnotify}