CON-2022 | Fix for removing Wall replies + maintenance script

https://wikia-inc.atlassian.net/browse/CON-2022

Maintenance script for fixing broken data for removed wall replies.
If we want to change it in this place let's change the array key in line [#956](https://github.com/Wikia/app/pull/5187/files#diff-3d0f733dd8565c144167bb192cc1db55R956) as well.