diff --git a/configure.ac b/configure.ac
index 7a5bac4..92a150b 100644
--- a/configure.ac
+++ b/configure.ac
@@ -195,9 +195,6 @@ ifdef(
 )
 AC_DEFINE(GENS_UI_GTK, 1, Enable the GTK+ UI)
 
-# TODO: Disable deprecated GTK+ features.
-GTK_CFLAGS="$GTK_CFLAGS -DGTK_DISABLE_DEPRECATED -DDISABLE_DEPRECATED -DGSEAL_ENABLE"
-
 #elif test x$ui = xqt4; then
 #
 # Qt4