Do not add countdown to the default video demo

Author: denismosolov

examples/video-only.html

@@ -44,14 +44,6 @@
             video: true,
             maxLength: 10,
             displayMilliseconds: false,
-            countdown: [
-              {value: 'Five!', time: 1000},
-              {value: 'Four!', time: 1000},
-              {value: 'Three', time: 1000},
-              {value: '2', time: 1000},
-              {value: '1', time: 500},
-              {value: 'Go!', time: 500},
-            ],
             debug: true
         }
     }