better config for driver lic4

Author: Tom-Dynamsoft

4.use-case/2.read-a-drivers-license.html

@@ -67,7 +67,6 @@ <h1 style="font-size: 1.5em;" id='header'>Read A Driver's License <a href="#" id
         // decode video from camera
         document.getElementById('btn-show-scanner').addEventListener('click', async() => {
             document.getElementById('btn-show-scanner').hidden = true;
-            //document.getElementById('btn-open-image').hidden = true;
             openScanner(false);
         });