Removed unnecessary string wrapping (#3490)

* Removed unnecessary string wrapping

react/features/display-name/components/DisplayName.web.js

                 className = 'displayname'
                 id = { elementID }
                 onClick = { this._onStartEditing }>
-                { `${appendSuffix(displayName, displayNameSuffix)}` }
+                { appendSuffix(displayName, displayNameSuffix) }
             </span>
         );
     }