[gimp] build/win: Upgrade gtk2 to 2.24.28

[Michael Henning <mhenning src gnome org>]

commit 1e8b9f46a06b99ea8d02ff02f05c0954cbc63a6a
Author: Michael Henning <drawoc darkrefraction com>
Date:   Sun Jun 7 16:58:00 2015 -0400

    build/win: Upgrade gtk2 to 2.24.28

 build/windows/jhbuild/gtk+.moduleset               |    7 +-
 .../jhbuild/patches/gtk-horiz-scrolling.patch      |   65 --------------------
 2 files changed, 3 insertions(+), 69 deletions(-)
---
diff --git a/build/windows/jhbuild/gtk+.moduleset b/build/windows/jhbuild/gtk+.moduleset
index a5a2bf9..a6121db 100644
--- a/build/windows/jhbuild/gtk+.moduleset
+++ b/build/windows/jhbuild/gtk+.moduleset
@@ -156,10 +156,9 @@
 </autotools>
 
 <autotools id="gtk2" autogen-sh="configure" makeargs=" || rm -f gtk/gtk.def &amp;&amp; make" 
makeinstallargs="install -j1">
-       <branch version="2.24.23" repo="gnome.org"
-                       module="gtk+/2.24/gtk+-2.24.23.tar.xz"
-                       hash="sha256:a0a406e27e9b5e7d6b2c4334212706ed5cdcd41e713e66c9ae950655dd61517c">
-               <patch file="gtk-horiz-scrolling.patch" strip="1"/>
+       <branch version="2.24.28" repo="gnome.org"
+                       module="gtk+/2.24/gtk+-2.24.28.tar.xz"
+                       hash="sha256:b2c6441e98bc5232e5f9bba6965075dcf580a8726398f7374d39f90b88ed4656">
        </branch>
        <dependencies>
                <dep package="glib2"/>