Remove Windows port
The rationale for this decision is to simplify maintenance of Diffuse by removing files that are not used anymore.
While I would like to see Diffuse ported on Windows, I think it has become impossible to salvage any of the existing files in this folder to try and fix the Windows installation. Also, since I took over the maintenance of Diffuse, no one stepped up to try and port the new Diffuse to Windows. The desire is here, but since I don't have Windows, I am not able to do the port. And in the meantime it is a burden each time I have to do a new release as I have to update several extra files that I don't know how to automate.
It is possible that Diffuse could be as easy to install on Windows as pip install diffuse, if we create a package for PyPi.
In case your are interested in porting Diffuse to Windows and want to know how it was done before, here is the repo before this MR: https://github.com/MightyCreak/diffuse/tree/c843e81cf21f79770b0a12acd6aece0fe2fd41ee/windows-installer