Removed credits from lessons

webgoat-container/src/main/java/org/owasp/webgoat/lessons/AbstractLesson.java

@@ -186,14 +186,6 @@ public abstract class AbstractLesson extends Screen implements Comparable<Object
         return getLessonTracker(s, this).getCompleted();
     }
 
-    /**
-     * Gets the credits attribute of the AbstractLesson object
-     *
-     * @return The credits value
-     * @deprecated - Credits have moved to the about page
-     */
-    public abstract Element getCredits();
-
     /**
      * {@inheritDoc}
      *

webgoat-container/src/main/java/org/owasp/webgoat/lessons/LessonAdapter.java

@@ -153,17 +153,6 @@ public abstract class LessonAdapter extends AbstractLesson {
         return hints;
     }
 
-    /**
-     * Gets the credits attribute of the AbstractLesson object
-     *
-     * @return The credits value
-     * @deprecated Credits are in the about page.  This method s no
-     * longer called from WebGoat
-     */
-    public Element getCredits() {
-        return new StringElement();
-    }
-
     /**
      * {@inheritDoc}
      *