Disable 'langremap'

Resolves: https://github.com/tpope/vim-sensible/pull/93

plugin/sensible.vim

@@ -85,6 +85,11 @@ if &t_Co == 8 && $TERM !~# '^Eterm'
   set t_Co=16
 endif
 
+" Disable a legacy behavior that can break plugin maps.
+if has('langmap') && exists('+langremap') && &langremap
+  set nolangremap
+endif
+
 " Load matchit.vim, but only if the user hasn't installed a newer version.
 if !exists('g:loaded_matchit') && findfile('plugin/matchit.vim', &rtp) ==# ''
   runtime! macros/matchit.vim