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

========

https://hg.mozilla.org/integration/gaia-central/rev/7448e582578f
Author: Ryan VanderMeulen <rvandermeulen@mozilla.com>
Desc: Revert "Merge pull request #23527 from gaye/calendar-modularization-2-force-gaia-try"

This reverts commit 2991746d61bae865f6e0c0dfacda07ae3c2f2fbd, reversing
changes made to 21c2f4b81ef43cdb47e1c7703bb0266d6a17603a.

b2g/config/gaia.json

@@ -4,6 +4,6 @@
         "remote": "", 
         "branch": ""
     }, 
-    "revision": "4ba63a032c723bc959ebf459df34a65c2fb58a3d", 
+    "revision": "7448e582578f9d88a6d24a8f372cb7a6343e25e3", 
     "repo_path": "/integration/gaia-central"
 }