title: Android appending additional headers
body: <p>When receiving a response from a volley request, the following headers are appended:</p>
  <blockquote>
  <p>X-Android-Received-Millis:1395544235409</p>
  <p>X-Android-Response-Source:NETWORK 200</p>
  <p>X-Android-Sent-Millis:1395544235363</p>
  </blockquote>
  <p>According to Android Network Monitor tool, the above headers contribute to the data usage by the app and I was wondering if there's a way to prevent them from being appended to the response header?</p>
  <p>Thanks</p>