Delete highScore.txt

src/model/highScore.txt

-shapp 50
-adwity 2
-Blake 1
-user1 1
-user1 0
-Arfa 0
-sally 0
-cow 0
-bernie 0
-arfa 0
-h 0
-ann 0
-rose 0
-shasha 0
-juliet 0
-shaw 0
-ronie 0
-rr 0
-hari 0
-nameUser 0