vim-7.0-rclocation.patch: Remove downstream patch
    
    Removal of downstream patch - new /usr/share/vim/{vimrc,virc} symlinks
    are created for loading /etc/{vimrc,virc}. New symlinks point to
    original files in /etc.
    
    The overhead is needed for getting rid of the patch and for test suite,
    because setting VIMRCLOC and VIMRUNTIMEDIR during build doesn't work -
    vim then always looks into VIMRUNTIMEDIR for vimrc, and upstream doesn't
    want to change this (see https://github.com/vim/vim/issues/8878)