fix(dial-in): remove console.warn used for debugging (#2547)

Looks like this guy snuck into the commit.

react/features/invite/components/dial-in-summary/DialInSummary.web.js

@@ -70,7 +70,6 @@ class DialInSummary extends Component {
      * instance is to be initialized.
      */
     constructor(props) {
-        console.warn(props);
         super(props);
 
         // Bind event handlers so they are only bound once for every instance.