[gnome-sdk-images] gtk-doc-stub was moved to fd.o

[Alexander Larsson <alexl src gnome org>]

commit df1c69ca58cd79e56a877a239819fbae9b2abf90
Author: Alexander Larsson <alexl redhat com>
Date:   Fri Feb 19 00:36:34 2016 +0100

    gtk-doc-stub was moved to fd.o

 org.gnome.Sdk.json |   10 ----------
 1 files changed, 0 insertions(+), 10 deletions(-)
---
diff --git a/org.gnome.Sdk.json b/org.gnome.Sdk.json
index 6c5b4da..88996ee 100644
--- a/org.gnome.Sdk.json
+++ b/org.gnome.Sdk.json
@@ -48,16 +48,6 @@
             ]
         },
         {
-            /* TODO: Replace with real gtk-doc */
-            "name": "gtk-doc-stub",
-            "sources": [
-                 {
-                     "type": "git",
-                     "url": "git://git.gnome.org/gtk-doc-stub"
-                 }
-            ]
-        },
-        {
             "name": "yelp-xsl",
             "cleanup-platform": [ "*" ],
             "config-opts": ["--disable-doc"],