gplugin/gplugin

Remove the mingw-cross packaging stuff as we're probably never going to get it working right

Testing Done:
Nothing

Reviewed at https://reviews.imfreedom.org/r/962/
[wrap-git]
directory=gi-docgen
url=https://gitlab.gnome.org/GNOME/gi-docgen.git
push-url=ssh://git@gitlab.gnome.org:GNOME/gi-docgen.git
revision=main
depth=1