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

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https://hg.mozilla.org/integration/gaia-central/rev/a110efdcd68b
Author: Arthur Chen <crh0716@gmail.com>
Desc: Revert "Bug 911701 - Show data signal strength when connecting to EVDO"

This reverts commit d8c3045df65e6126f6af02a47f9e4a22682e0898.