[gnome-session] capplet: Remove useless define

[Vincent Untz <vuntz src gnome org>]

commit f415130f0de6cdc13d9433632d5ee1554a242103
Author: Vincent Untz <vuntz gnome org>
Date:   Mon Nov 29 15:14:31 2010 +0100

    capplet: Remove useless define

 capplet/gsm-properties-dialog.c |    3 ---
 1 files changed, 0 insertions(+), 3 deletions(-)
---
diff --git a/capplet/gsm-properties-dialog.c b/capplet/gsm-properties-dialog.c
index c49bf42..1eb73be 100644
--- a/capplet/gsm-properties-dialog.c
+++ b/capplet/gsm-properties-dialog.c
@@ -38,9 +38,6 @@
 
 #define GSM_PROPERTIES_DIALOG_GET_PRIVATE(o) (G_TYPE_INSTANCE_GET_PRIVATE ((o), GSM_TYPE_PROPERTIES_DIALOG, GsmPropertiesDialogPrivate))
 
-#define REALLY_IDENTICAL_STRING(a, b)                   \
-        ((a && b && !strcmp (a, b)) || (!a && !b))
-
 #define GTKBUILDER_FILE "session-properties.ui"
 
 #define CAPPLET_TREEVIEW_WIDGET_NAME      "session_properties_treeview"