title: vim change :x function to delete buffer instead of save & quit
body: <p>I want to set <code>:x</code> in vim gui-mode to <code>delete buffer</code> because I always kill the whole gvim, which is kind of annoying. I know i can specifically set gui problems with <code>if has("gui running")</code> but don't know how to remap <code>:x</code></p>
  
  <p>thanks in advance</p>
  
  <p>ps.: maybe the tag/term <code>remap</code> is wrong but I don't know the correct term, that's why google didn't provide any help at all.</p>