[gtk+] Drop redundant include

[Matthias Clasen <matthiasc src gnome org>]

commit 188424cb7c04b507eb1e9d896c6b0db408861f0f
Author: Matthias Clasen <mclasen redhat com>
Date:   Sun Nov 30 15:13:13 2014 -0500

    Drop redundant include

 gtk/Makefile.am |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/gtk/Makefile.am b/gtk/Makefile.am
index 49dd0f7..4a783d9 100644
--- a/gtk/Makefile.am
+++ b/gtk/Makefile.am
@@ -69,7 +69,7 @@ AM_CPPFLAGS =                                         \
        -DGTK_PRINT_PREVIEW_COMMAND=\"$(GTK_PRINT_PREVIEW_COMMAND)\"    \
        -I$(top_builddir)                               \
        -I$(top_builddir)/gtk                           \
-       -I$(top_srcdir) -I../gdk                        \
+       -I$(top_srcdir)                                 \
        -I$(top_srcdir)/gdk                             \
        -DGTK_FILE_SYSTEM_ENABLE_UNSUPPORTED            \
        -DGTK_PRINT_BACKEND_ENABLE_UNSUPPORTED          \