remove downstream patch vim-8.0-copypaste.patch
    
    The patch used to remove 'new' (since 2017) mouse behavior in Vim, which
    is applied only if user vimrc (~/.vimrc) doesn't exist. The patch
    removal puts the behavior new behavior back.
    
    Block copying with new mouse behavior is done by Shift+(mark the text
    with mouse). For pasting in Vim enter insert mode and press
    Shift+Insert, or for pasting in other terminal click on middle mouse
    button.
    
    The new behavior can be bypassed by creating user .vimrc or setting
    skip_defaults_vim, see ':help defaults.vim' in Vim.