Remove package source files for InkScape package

It seems you have an outdated version of the inkscape package in your repository. I a now a co-maintainer of this package and made an automatically-updating-package out of it.
It is now hosted in my repository: https://github.com/TomOne/chocolatey-packages/tree/master/automatic/InkScape

I think it is better to remove it from your repository to avoid confusion in case some folks wants to contribute. Otherwise they would encounter multiple differing versions of this package.