"View as Visitor" allows you to take a quiz

### 1. Reproduction Steps

+ Add a quiz to a FREE lesson
+ Use "View as Visitor" from admin bar

### 2. Expected Behavior

+ The quiz should NOT be accessible because quizzes are not accessible to logged out users (even on free lessons)

### 3. Actual Behavior

The quiz is accessible when viewing as a visitor

### 4. Solution

View as functionality should be modified to show NO quiz button to reflect the actual user experience of a visitor / logged out user. Currently it's showing the quiz button because there's no logic built out to hide it