Bumping gaia.json for 4 gaia revision(s) a=gaia-bump

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https://hg.mozilla.org/integration/gaia-central/rev/69fd573db341
Author: Jose M. Cantera <jmcanterafonseca@gmail.com>
Desc: Merge pull request #22570 from jmcanterafonseca/remove_undo

Bug 1048160 - [Contacts Actionable Fields] Remove undo functionality

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https://hg.mozilla.org/integration/gaia-central/rev/e721e8ad642e
Author: Jose M. Cantera <jmcanterafonseca@gmail.com>
Desc: Bug 1048160 - [Contacts Actionable Fields] Remove undo functionality

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https://hg.mozilla.org/integration/gaia-central/rev/39fbf8efab82
Author: Kevin Grandon <kevingrandon@yahoo.com>
Desc: Merge pull request #22863 from KevinGrandon/bug_1053626_search_legazy_moz_activity_removal

Bug 1053626 - [Search] Remove legacy MozActivity calls

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https://hg.mozilla.org/integration/gaia-central/rev/9065c41876d6
Author: Kevin Grandon <kevingrandon@yahoo.com>
Desc: Bug 1053626 - [Search] Remove legacy MozActivity calls r=me

b2g/config/gaia.json

@@ -4,6 +4,6 @@
         "remote": "", 
         "branch": ""
     }, 
-    "revision": "014d028c7f532da78cc18a53d3c441456e485bdf", 
+    "revision": "69fd573db341e4028ed5cf5fe5096a0df583e562", 
     "repo_path": "/integration/gaia-central"
 }