Bumping gaia.json for 1 gaia revision(s) a=gaia-bump

========

https://hg.mozilla.org/integration/gaia-central/rev/f8f42fe2d149
Author: Kevin Grandon <kevingrandon@yahoo.com>
Desc: Revert "Bug 1104198 - Make DESKTOP builds work with mulet."

This reverts commit cb501ab9552703691f8752882397daddcf7eb1fd.

b2g/config/gaia.json

@@ -4,6 +4,6 @@
         "remote": "", 
         "branch": ""
     }, 
-    "revision": "4269da37147a32794dc4df66b48d0318ec92f1bc", 
+    "revision": "f8f42fe2d149835c1ae731d799434988caa40d8d", 
     "repo_path": "integration/gaia-central"
 }