KXStudio : Repositories : Extras

The extra repository is now deprecated and will no longer be updated.

It is no longer possible to build i386 packages on launchpad PPAs, and as such any system library packages end up broken for multi-arch systems.
This prevents us from updating, for example, JACK2 without it completely breaking 32bit system compatibility.
In order to prevent more breakage this repository should no longer be used.