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

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https://hg.mozilla.org/integration/gaia-central/rev/e2666ec5cdff
Author: KWierso <kwierso@gmail.com>
Desc: Revert "Merge pull request #16610 from gitmai/bug-858017-network-alarm-complete" for network alarm test bustage

This reverts commit 877ddee8e913319780f7e9ccf1770c8af584b976, reversing
changes made to 9422aca1931ba6c68784f9e80bb1b6a7fcfd92e3.
Bumping manifests a=b2g-bump