None of the browsers we send JS to don't support the '*'
selector, so we can remove the fallback for monobook.
Change-Id: I691a71fc8bf4cfa62e8056fdf1021f6513517f75
In the next iteration of the MediaWiki UI icon styles, it will
not be possible to mix button classes with icons.
The change will result in a slight increase in height for
the settings cog which will be fixed as soon
as Ibc136a17662ae839f90babb21e0f7e8f27b7a7d5 is applied.
Bug: T191021
Change-Id: Ic976ba8cddde1515db260973b00d501f8fc7b901
