cleanup commit

lib/exo2.dart

@@ -99,12 +99,3 @@ class _Exo2State extends State<Exo2> {
     );
   }
 }
-
-/*
-Transform(transform: Matrix4.rotationX(_currentSliderValueX *(pi/10))
-              ..rotateZ(_currentSliderValueZ *(pi/10))
-              ..scale(_currentSliderValueScale/100),
-                origin: Offset.zero,
-                child: Center(child: Image.network('https://picsum.photos/512/1024'))
-            ),
- */
\ No newline at end of file

lib/exo6.dart

@@ -131,9 +131,6 @@ class PositionedTilesState extends State<PositionedTiles> {
       if(current==empty+1 && current%_currentSlideValue!=0){
         emptyIndex=current;
         tiles.insert(empty, tiles.removeAt(current));
-       // tiles[empty].isUsable=true;
-       // tiles[empty+2].isUsable=true;
-      //  tiles[empty+_currentSlideValue.toInt()+1].isUsable=true;
 
       }else if(current==empty-1  && empty%_currentSlideValue!=0){
         emptyIndex=current;