Removed unused imports

Author: ravina24

app/src/main/java/com/example/ravina/tictactoe/TicTacToeActivity.java

@@ -1,9 +1,5 @@
 package com.example.ravina.tictactoe;
 
-import android.app.Activity;
-import android.content.Context;
-import android.content.Intent;
-import android.content.SharedPreferences;
 import android.graphics.Bitmap;
 import android.graphics.Canvas;
 import android.graphics.drawable.BitmapDrawable;
@@ -19,7 +15,6 @@
 
 import java.util.ArrayList;
 import java.util.List;
-import java.util.Map;
 
 public class TicTacToeActivity extends AppCompatActivity {
     GridLayout board;
@@ -314,8 +309,6 @@ private Boolean checkOver(Tile t1, Tile t2, Tile t3) {
         return over;
     }
 
-
-
     /**
      * If turn is 1, draw a cross on iv. Else, draw a circle on iv
      * @param iv imageview to draw on