title: how to remove request header from HttpInputStream
body: <p>I need help with a servlet.</p>
  
  <p>I need to read a inputStream in one request and write a tiff file.
  The inputStream come with request header and i dont know how remove that bytes and write only the file.</p>
  
  <p>See initial bytes from the writen file.</p>
  
  <pre><code>-qF3PFkB8oQ-OnPe9HVzkqFtLeOnz7S5Be
  Content-Disposition: form-data; name=""; filename=""
  Content-Type: application/octet-stream; charset=ISO-8859-1
  Content-Transfer-Encoding: binary
  </code></pre>
  
  <p>I want to remove that and write only bytes from the tiff file.
  PS: sender of file its not me.</p>