Cleanup of comments

Author: DXCanas

kolibri/plugins/learn/assets/src/views/content-card-grid/index.vue

@@ -76,7 +76,6 @@
       genLink: {
         type: Function,
         validator(value) {
-          // callback: function(contentId, contentKind)
           return validateLinkObject(value(1, 'exercise'));
         },
         default: () => {},