Revert of Add the url attribute to the IceCandidate (Java Wrapper)

webrtc/examples/androidapp/src/org/appspot/apprtc/DirectRTCClient.java

Index: webrtc/examples/androidapp/src/org/appspot/apprtc/DirectRTCClient.java
diff --git a/webrtc/examples/androidapp/src/org/appspot/apprtc/DirectRTCClient.java b/webrtc/examples/androidapp/src/org/appspot/apprtc/DirectRTCClient.java
index 6d143b92bf72ebf4072eadd64406c1c53fea2c42..199979f61be71e737f8d21f4f9b11cc06492fb29 100644
--- a/webrtc/examples/androidapp/src/org/appspot/apprtc/DirectRTCClient.java
+++ b/webrtc/examples/androidapp/src/org/appspot/apprtc/DirectRTCClient.java
@@ -187,7 +187,6 @@
         jsonPut(json, "label", candidate.sdpMLineIndex);
         jsonPut(json, "id", candidate.sdpMid);
         jsonPut(json, "candidate", candidate.sdp);
-        jsonPut(json, "url", candidate.serverUrl);
 
         if (roomState != ConnectionState.CONNECTED) {
           reportError("Sending ICE candidate in non connected state.");
@@ -337,13 +336,12 @@
     jsonPut(json, "label", candidate.sdpMLineIndex);
     jsonPut(json, "id", candidate.sdpMid);
     jsonPut(json, "candidate", candidate.sdp);
-    jsonPut(json, "url", candidate.serverUrl);
     return json;
   }
 
   // Converts a JSON candidate to a Java object.
   private static IceCandidate toJavaCandidate(JSONObject json) throws JSONException {
-    return new IceCandidate(json.getString("id"), json.getInt("label"), json.getString("candidate"),
-        json.getString("url"));
+    return new IceCandidate(
+        json.getString("id"), json.getInt("label"), json.getString("candidate"));
   }
 }