Clean code of the first task.

src/main/java/view/FirefighterGrid.java

@@ -38,14 +38,6 @@ public class FirefighterGrid extends Canvas implements Grid<model.BoardElement>{
     private int columnCount;
     private int rowCount;
 
-    /*@Override
-    public void repaint(List<Pair<Position, model.BoardElement>> positionedElements) {
-    }*/
-
-    private void clear(List<Pair<Position, BoardElement>> positionedElements) {
-
-    }
-
 
     @Override
     public void repaint(HashMap<Position, ArrayList<BoardElement>> elementPositionGrid) {
@@ -96,9 +88,4 @@ public class FirefighterGrid extends Canvas implements Grid<model.BoardElement>{
             getGraphicsContext2D().strokeLine(0, row*squareHeight, getWidth(), row*squareHeight);
     }
 
-
-
-    private void clearSquare(int row, int column){
-        getGraphicsContext2D().clearRect(row*squareHeight,column*squareWidth,squareHeight,squareWidth);
-    }
 }
\ No newline at end of file