remove testing git plugin

nerdtree_plugin/git.vim

@@ -1,65 +0,0 @@
-" ============================================================================
-" File:        git.vim
-" Description: Expt. plugin to add git flags to the UI
-" Maintainer:
-" License:     This program is free software. It comes without any warranty,
-"              to the extent permitted by applicable law. You can redistribute
-"              it and/or modify it under the terms of the Do What The Fuck You
-"              Want To Public License, Version 2, as published by Sam Hocevar.
-"              See http://sam.zoy.org/wtfpl/COPYING for more details.
-"
-" ============================================================================
-if exists("g:loaded_nerdtree_git")
-    finish
-endif
-let g:loaded_nerdtree_git = 1
-
-call g:NERDTreeRefreshNotifier.AddListener("g:NERDTreeGitRefreshListener")
-
-function! g:NERDTreeGitRefreshListener(path)
-    if !isdirectory(b:NERDTreeRoot.path.str() . '/.git')
-        return
-    end
-
-    let modifiedFiles = s:GetModifiedFiles()
-    if index(modifiedFiles, a:path.str()) >= 0
-        call a:path.flagSet.addFlag("git", "+")
-    else
-        call a:path.flagSet.removeFlag("git", "+")
-    endif
-endfunction
-
-"Cache the list of modified files for a few seconds - otherwise we must shell
-"out to get it for every path that is refreshed which takes ages
-function! s:GetModifiedFiles()
-    if !exists('s:modifiedFiles') || (localtime() - s:modifiedFilesTime > 2)
-        let s:modifiedFiles = split(system('git -C ' . b:NERDTreeRoot.path.str() . ' ls-files -m'))
-        let s:modifiedFilesTime = localtime()
-        call map(s:modifiedFiles, 'b:NERDTreeRoot.path.str() . "/" . v:val')
-    endif
-
-    return s:modifiedFiles
-endfunction
-
-autocmd filetype nerdtree call s:AddHighlighting()
-function! s:AddHighlighting()
-    syn match NERDTreeGitflag #^ *\zs\[+\]# containedin=NERDTreeFile
-    hi link NERDTreeGitFlag error
-endfunction
-
-"when a buffer is saved, refresh it in nerdtree
-autocmd bufwritepost * call s:FileUpdated(expand("%"))
-function! s:FileUpdated(fname)
-    if !nerdtree#isTreeOpen()
-        return
-    endif
-
-    call nerdtree#putCursorInTreeWin()
-    let node = b:NERDTreeRoot.findNode(g:NERDTreePath.New(a:fname))
-    if !empty(node)
-        call node.refresh()
-    endif
-
-    call NERDTreeRender()
-endfunction
-