Remove text appearing to put a requirement on the app.

Instead, there should be a requirement on the user agent to validate the
application's input.

This requirement is added by w3c#194.

index.html

@@ -1035,8 +1035,7 @@ <h2>Methods</h2>
             The {{removeCandidatePair}} method removes the provided candidate pair. The [= ICE agent =] will stop sending and
             responding to ICE connectivity checks on the removed candidate pair, and it can no longer be used to send data for this
             transport. This method is meant to be called when the application wants to allow the [= ICE agent =] to [= free =]
-            candidates that it no longer needs. The application cannot call {{RTCIceTransport/selectCandidatePair}}() with a
-            candidate pair removed with this method.
+            candidates that it no longer needs.
           </p>
           <p>
             When this method is invoked, the [= user agent =] MUST run the following steps: