The modules 'ext.uls.init'/'ext.uls.common' provides only a library and
no own funtionality. The modules get automatically loaded through
dependencies by other modules when needed as library. An explicit
loading on all page is not necessary. For example the MediaWiki API
help page does not have any ULS elements.
Bug: T145186
Change-Id: Ida99704ca2846e6adf154255bee3148e80c957d8
Given the code no longer uses any EventLogging methods directly,
but rather mw.track(), this means it also doesn't need to declare
any dependencies, including for older MediaWiki versions this
will work as-is.
Change-Id: I8cdcef54321d0887c509fc3683acf132c113e628