Bumping gaia.json for 1 gaia-1_2 revision(s) a=gaia-bump

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https://hg.mozilla.org/integration/gaia-1_2/rev/7f676ce2d15e
Author: Anthony Ricaud <anthony@ricaud.me>
Desc: Revert "Bug 925961 - Use the email address parser for showing bubble properly."

This reverts commit 60a69a3508a6127c61ed8701667424011b08d972.