diff -up vim82/runtime/defaults.vim.copypaste vim82/runtime/defaults.vim

--- vim82/runtime/defaults.vim.copypaste	2020-10-06 17:03:19.276066889 +0200

+++ vim82/runtime/defaults.vim	2020-10-06 17:04:30.437448603 +0200

@@ -73,18 +73,6 @@ map Q gq

 " Revert with ":iunmap <C-U>".

 inoremap <C-U> <C-G>u<C-U>

-" In many terminal emulators the mouse works just fine.  By enabling it you

-" can position the cursor, Visually select and scroll with the mouse.

-" Only xterm can grab the mouse events when using the shift key, for other

-" terminals use ":", select text and press Esc.

-if has('mouse')

-  if &term =~ 'xterm'

-    set mouse=a

-  else

-    set mouse=nvi

-  endif

-endif

-

 " Only do this part when Vim was compiled with the +eval feature.

 if 1