Revert Wikidata to mw1.24-wmf19 branch

this is is what is deployed on wikidata and we should
just stick with this, i think for another week until
we resolve the issues and are more confident that the
code is ready for deploy.

Change-Id: Iff5e43ad5956c6a782546ec03f2283dbebc84adb
Merge "Revert Wikidata to mw1.24-wmf19 branch" into wmf/1.24wmf21