Removed deprecated package files that have been moved to automatic packages

It’s a good idea to remove the old manual package files of the new automatic packages to avoid confusion and to keep the repo clean and tidy.

Note that I didn’t remove https://github.com/jivkok/Chocolatey-Packages/blob/master/SourceTree/SourceTree.png, because otherwise the corresponding package in the gallery will lose its icon until the automatic package gets updated.