OF-885: Undoing force of content-length to prevent chunked encoding.

src/java/org/jivesoftware/openfire/http/HttpBindServlet.java

@@ -455,7 +455,6 @@ public class HttpBindServlet extends HttpServlet {
         @Override
         public void onWritePossible() throws IOException {
             Log.trace("Data can be written to [" + remoteAddress + "]");
-            context.getResponse().setContentLength(data.length);
             context.getResponse().getOutputStream().write(data);
             context.complete();
         }