diff --git a/autoload/diff.vim b/autoload/diff.vim
index d882cc7..2f55842 100644
--- a/autoload/diff.vim
+++ b/autoload/diff.vim
@@ -4,7 +4,7 @@ let s:hunk_re = '^@@ -\(\d\+\),\?\(\d*\) +\(\d\+\),\?\(\d*\) @@'
 
 
 function! diff#run_diff(realtime, use_external_grep)
-  let cmd = 'git ls-files --error-unmatch' . utility#discard_stdout_and_stderr() . ' ' . shellescape(utility#file()) . ' && ('
+  let cmd = 'git ls-files --error-unmatch ' . shellescape(utility#file()) . ' && ('
 
   if a:realtime
     let blob_name = ':./' . fnamemodify(utility#file(),':t')
diff --git a/autoload/utility.vim b/autoload/utility.vim
index 110c9dc..e864512 100644
--- a/autoload/utility.vim
+++ b/autoload/utility.vim
@@ -59,17 +59,6 @@ function! utility#escape(str)
   endif
 endfunction
 
-function! utility#discard_stdout_and_stderr()
-  if !exists('utility#discard')
-    if &shellredir ==? '>%s 2>&1'
-      let utility#discard = ' > /dev/null 2>&1'
-    else
-      let utility#discard = ' >& /dev/null'
-    endif
-  endif
-  return utility#discard
-endfunction
-
 function! utility#command_in_directory_of_file(cmd)
   let utility#cmd_in_dir = 'cd ' . utility#directory_of_file() . ' && ' . a:cmd
   return substitute(utility#cmd_in_dir, "'", '"', 'g')