queen-attack: removed `final` from tests (#1456)

exercises/queen-attack/src/test/java/QueenAttackCalculatorTest.java

     @Ignore("Remove to run test")
     @Test
     public void testQueensCannotAttack() {
-        final QueenAttackCalculator calculator
+        QueenAttackCalculator calculator
                 = new QueenAttackCalculator(new Queen(2, 4), new Queen(6, 6));
 
         assertFalse(calculator.canQueensAttackOneAnother());
     @Ignore("Remove to run test")
     @Test
     public void testQueensCanAttackOnTheSameRow() {
-        final QueenAttackCalculator calculator
+        QueenAttackCalculator calculator
                 = new QueenAttackCalculator(new Queen(2, 4), new Queen(2, 6));
 
         assertTrue(calculator.canQueensAttackOneAnother());
     @Ignore("Remove to run test")
     @Test
     public void testQueensCanAttackOnTheSameColumn() {
-        final QueenAttackCalculator calculator
+        QueenAttackCalculator calculator
                 = new QueenAttackCalculator(new Queen(4, 5), new Queen(2, 5));
 
         assertTrue(calculator.canQueensAttackOneAnother());
     @Ignore("Remove to run test")
     @Test
     public void testQueensCanAttackOnFirstDiagonal() {
-        final QueenAttackCalculator calculator
+        QueenAttackCalculator calculator
                 = new QueenAttackCalculator(new Queen(2, 2), new Queen(0, 4));
 
         assertTrue(calculator.canQueensAttackOneAnother());
     @Ignore("Remove to run test")
     @Test
     public void testQueensCanAttackOnSecondDiagonal() {
-        final QueenAttackCalculator calculator
+        QueenAttackCalculator calculator
                 = new QueenAttackCalculator(new Queen(2, 2), new Queen(3, 1));
 
         assertTrue(calculator.canQueensAttackOneAnother());
     @Ignore("Remove to run test")
     @Test
     public void testQueensCanAttackOnThirdDiagonal() {
-        final QueenAttackCalculator calculator
+        QueenAttackCalculator calculator
                 = new QueenAttackCalculator(new Queen(2, 2), new Queen(1, 1));
 
         assertTrue(calculator.canQueensAttackOneAnother());
     @Ignore("Remove to run test")
     @Test
     public void testQueensCanAttackOnFourthDiagonal() {
-        final QueenAttackCalculator calculator
+        QueenAttackCalculator calculator
                 = new QueenAttackCalculator(new Queen(2, 2), new Queen(5, 5));
 
         assertTrue(calculator.canQueensAttackOneAnother());