Merge branch 'jn/contrib-remove-vim'

Spring cleaning of contrib/.

* jn/contrib-remove-vim:
  contrib: remove vim support instructions

contrib/vim/README

@@ -1,22 +0,0 @@
-Syntax highlighting for git commit messages, config files, etc. is
-included with the vim distribution as of vim 7.2, and should work
-automatically.
-
-If you have an older version of vim, you can get the latest syntax
-files from the vim project:
-
-  http://ftp.vim.org/pub/vim/runtime/syntax/git.vim
-  http://ftp.vim.org/pub/vim/runtime/syntax/gitcommit.vim
-  http://ftp.vim.org/pub/vim/runtime/syntax/gitconfig.vim
-  http://ftp.vim.org/pub/vim/runtime/syntax/gitrebase.vim
-  http://ftp.vim.org/pub/vim/runtime/syntax/gitsendemail.vim
-
-These files are also available via FTP at the same location.
-
-To install:
-
-  1. Copy these files to vim's syntax directory $HOME/.vim/syntax
-  2. To auto-detect the editing of various git-related filetypes:
-
-	$ curl http://ftp.vim.org/pub/vim/runtime/filetype.vim |
-		sed -ne '/^" Git$/, /^$/ p' >>$HOME/.vim/filetype.vim