title: Git Failing to remove with clean
body: <p>when I type in <code>git clean -f</code> i get the following error message:</p>
  
  <pre><code>&gt;     Removing .__afs043
  &gt;     warning: failed to remove .__afs043
  &gt;     Removing .__afs0F7D
  &gt;     warning: failed to remove .__afs0F7D
  &gt;     Removing .__afs1359
  &gt;     warning: failed to remove .__afs1359
  &gt;     Removing .__afs1421
  &gt;     warning: failed to remove .__afs1421
  &gt;     Removing .__afs243A
  &gt;     warning: failed to remove .__afs243A
  &gt;     Removing .__afs2745
  &gt;     warning: failed to remove .__afs2745
  &gt;     Removing .__afs3454
  &gt;     warning: failed to remove .__afs3454
  &gt;     Removing .__afs3D12
  &gt;     warning: failed to remove .__afs3D12
  &gt;     Removing .__afs4A5E
  &gt;     warning: failed to remove .__afs4A5E
  &gt;     Removing .__afs4FB8
  &gt;     warning: failed to remove .__afs4FB8
  &gt;     Removing .__afs5D5B
  &gt;     warning: failed to remove .__afs5D5B
  &gt;     Removing .__afs5E1D
  &gt;     warning: failed to remove .__afs5E1D
  &gt;     Removing .__afs6086
  &gt;     warning: failed to remove .__afs6086
  &gt;     Removing .__afs6328
  &gt;     warning: failed to remove .__afs6328
  &gt;     Removing .__afs6D97
  &gt;     warning: failed to remove .__afs6D97
  &gt;     Removing .__afs7562
  &gt;     warning: failed to remove .__afs7562
  &gt;     Removing .__afs7C22
  &gt;     warning: failed to remove .__afs7C22
  &gt;     Removing .__afs8148
  &gt;     warning: failed to remove .__afs8148
  &gt;     Removing .__afs865F
  &gt;     warning: failed to remove .__afs865F
  &gt;     Removing .__afs8CE5
  &gt;     warning: failed to remove .__afs8CE5
  &gt;     Removing .__afs9295
  &gt;     warning: failed to remove .__afs9295
  &gt;     Removing .__afs938C
  &gt;     warning: failed to remove .__afs938C
  &gt;     Removing .__afs9439
  &gt;     warning: failed to remove .__afs9439
  &gt;     Removing .__afsA5EC
  &gt;     warning: failed to remove .__afsA5EC
  &gt;     Removing .__afsA859
  &gt;     warning: failed to remove .__afsA859
  &gt;     Removing .__afsB044
  &gt;     warning: failed to remove .__afsB044
  &gt;     Removing .__afsB9EF
  &gt;     warning: failed to remove .__afsB9EF
  &gt;     Removing .__afsC47E
  &gt;     warning: failed to remove .__afsC47E
  &gt;     Removing .__afsCF6E
  &gt;     warning: failed to remove .__afsCF6E
  &gt;     Removing .__afsD42
  &gt;     warning: failed to remove .__afsD42
  &gt;     Removing .__afsD50F
  &gt;     warning: failed to remove .__afsD50F
  &gt;     Removing .__afsE6B9
  &gt;     warning: failed to remove .__afsE6B9
  &gt;     Removing .__afsE9F3
  &gt;     warning: failed to remove .__afsE9F3
  &gt;     Removing .__afsF0DA
  &gt;     warning: failed to remove .__afsF0DA
  &gt;     Removing .__afsF9EA
  &gt;     warning: failed to remove .__afsF9EA
  </code></pre>
  
  <p>from the command. Yet i need to remove these files in order to checkout of my branch because I get the following message:</p>
  
  <pre><code>Error: The following untracked working tree files would be overwritten
  by checkout:
            .__afs4FB8
            .__afs6D97
            .__afs865F
            .__afs9439
            .__afsF9EA Please move or remove them before you can switch branches. 
  
  Aborting
  </code></pre>
  
  <p>What do I do??! I need to be able to checkout and update this branch fast!</p>