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

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https://hg.mozilla.org/integration/gaia-central/rev/a95146f84b3d
Author: Timothy Guan-tin Chien <timdream@gmail.com>
Desc: Revert "Merge pull request #13542 from pivanov/bug-933206"

This reverts commit 5066947b583d0a6700b521c21c23f8f00b5c05ab, reversing
changes made to a32e81bf56a0326dfcadcacf176f48a682a0dce4.