Updated mediawiki/extensions
Project: mediawiki/extensions/GettingStarted  19ce3f453d9dbfb7e62a467fda4a18a7a686f8d0

Remove server-side signup experiment event logging

Stop logging the following events:

* TrackedPageContentSaveComplete
* SignupExpAccountCreationComplete
* SignupExpAccountCreationImpression

Also, remove the associated GettingStarted\Hooks::getGettingStartedToken
method.

Change-Id: I69f4c643841df78622943eba1882fd21611726e3