Bumping gaia.json for 3 gaia revision(s) a=gaia-bump

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https://hg.mozilla.org/integration/gaia-central/rev/4276fbaea999
Author: Timothy Guan-tin Chien <timdream@gmail.com>
Desc: Revert "Merge pull request #23153 from gmarty/Bug-1038723-Utility-Tray-Visual-Refresh"

This reverts commit be46e59bc351842fcda012f5b8f24b99cd70cc88, reversing
changes made to c05ee27dd1f39e0f1cceb8bc7706e20f297cd9df.

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https://hg.mozilla.org/integration/gaia-central/rev/e2ec3830cf2c
Author: Timothy Guan-tin Chien <timdream@gmail.com>
Desc: Revert "Merge pull request #23506 from jrburke/system-lint-error"

This reverts commit c1625ae6a088ee362b88a2e857147f956f3baea8, reversing
changes made to db6ed35ac354a3eeb5a4bd3c8339bca28f8eb7e6.

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https://hg.mozilla.org/integration/gaia-central/rev/791f815c3cbc
Author: Timothy Guan-tin Chien <timdream@gmail.com>
Desc: Revert "Merge pull request #23504 from gmarty/Visual-Refresh-hotfix"

This reverts commit 40be751fb4e79d49cb4470d104b34a06c4359afa, reversing
changes made to c1a089f2a059004c218b6783b166bddd8554ab1c.
Bumping manifests a=b2g-bump