Reset lesson bug (#741)

* Remove old code from UI

* Remove old code

* Remove old functions

* Remove unnecessary divs

* Remove logging to console

* Clear lesson messages (checkmark, output text etc) when lesson resets

webgoat-container/src/main/resources/static/js/goatApp/view/HelpControlsView.js

@@ -41,14 +41,6 @@ function($,_,Backbone) {
 		    this.trigger('hints:show','hint');
 		},
 
-		showSource: function() {
-			this.trigger('source:show','source');
-		},
-
-		showSolution: function() {
-			this.trigger('solution:show','solution');
-		},
-
 		restartLesson: function() {
 			this.trigger('lesson:restart');
 		}