[gtk+] Drop unneeded define

[Matthias Clasen <matthiasc src gnome org>]

commit 551f01e5f32f52e0ced7fb99b430740465ffa32d
Author: Matthias Clasen <mclasen redhat com>
Date:   Wed May 29 22:02:12 2013 -0400

    Drop unneeded define
    
    SRCDIR is no longer used.

 testsuite/gtk/Makefile.am |    1 -
 1 files changed, 0 insertions(+), 1 deletions(-)
---
diff --git a/testsuite/gtk/Makefile.am b/testsuite/gtk/Makefile.am
index 06918f6..66a3537 100644
--- a/testsuite/gtk/Makefile.am
+++ b/testsuite/gtk/Makefile.am
@@ -8,7 +8,6 @@ AM_CPPFLAGS = \
        -I$(top_srcdir)/gdk             \
        -I$(top_builddir)/gtk           \
        -I$(top_srcdir)/gtk             \
-       -DSRCDIR=\""$(abs_srcdir)"\"    \
        $(GTK_DEBUG_FLAGS)              \
        $(GTK_DEP_CFLAGS)