Bumping gaia.json for 2 gaia revision(s) a=gaia-bump

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https://hg.mozilla.org/integration/gaia-central/rev/44d06335df26
Author: Ed Morley <emorley@mozilla.com>
Desc: Revert "Bug 1018214 - adding a number of gaia ui tests for status bar and utility tray accessibility. r=Bebe" for intermittent test failures

This reverts commit 9cd529cf12c4de1f6cb12d15a3916510428304c6.

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https://hg.mozilla.org/integration/gaia-central/rev/ff0ee640650b
Author: Ryan VanderMeulen <rvandermeulen@mozilla.com>
Desc: Revert "Merge pull request #19965 from justindarc/bug1014955"

This reverts commit dbd4e40dd86d0af6bf69a6bb8babee8a5e226be4, reversing
changes made to 7ba9b2f9c727f1021bd4e9b625cd381214002a98.

b2g/config/gaia.json

@@ -4,6 +4,6 @@
         "remote": "", 
         "branch": ""
     }, 
-    "revision": "b8a669ee022fc969ec2e2fd8fc10575d14364bcb", 
+    "revision": "44d06335df263f64e6ea5b4344c4322d4fabe9c2", 
     "repo_path": "/integration/gaia-central"
 }