Uninstalling Vim compiled from source
To uninstall vim, you can just download again the sources and run in the source directory :
make VIMRUNTIMEDIR=/usr/share/vim/vim73
sudo make uninstall
replacing /usr/share/vim/vim73
by the one you used for installation.
You have to run make distclean
before make VIMRUNTIMEDIR=...
cd ~/tmp
hub clone vim/vim
cd vim
make distclean <---
make VIMRUNTIMEDIR=/usr/local/share/vim/vim80
sudo make uninstall