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

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https://hg.mozilla.org/integration/gaia-central/rev/f5b7ad5069be
Author: Fernando Rodriguez Sela <frsela@tid.es>
Desc: Revert "Merge pull request #10967 from frsela/STK/Bug893614"

This reverts commit c340cc85151a3387746c1e0cf742bb8c2e8b09fb, reversing
changes made to 4e56aba1d98a43f492508bfe1b32ce4eac8cd893.