[gnome-sdk-images] remove unused initial-debug property

[Alexander Larsson <alexl src gnome org>]

commit 364e26b5a26533a99ef73a6ba1f7d5946d06f4c3
Author: Alexander Larsson <alexl redhat com>
Date:   Fri Feb 12 13:48:54 2016 +0100

    remove unused initial-debug property

 org.gnome.Sdk.json |    1 -
 1 files changed, 0 insertions(+), 1 deletions(-)
---
diff --git a/org.gnome.Sdk.json b/org.gnome.Sdk.json
index 9d23397..ec767c4 100644
--- a/org.gnome.Sdk.json
+++ b/org.gnome.Sdk.json
@@ -5,7 +5,6 @@
     "branch": "master",
     "runtime": "org.freedesktop.Platform",
     "sdk": "org.freedesktop.Sdk",
-    "initial-debug": "org.freedesktop.Debug",
     "runtime-version": "master",
     "writable-sdk": true,
     "sdk-extensions": ["org.freedesktop.Sdk.Debug"],