style: remove count from testIteratorEmptyBag

Author: vil02

src/test/java/com/thealgorithms/datastructures/bag/BagTest.java

@@ -98,11 +98,9 @@ void testIterator() {
     @Test
     void testIteratorEmptyBag() {
         Bag<String> bag = new Bag<>();
-        int count = 0;
         for (String ignored : bag) {
             org.junit.jupiter.api.Assertions.fail("Iterator should not return any items for an empty bag");
         }
-        assertEquals(0, count, "Iterator should not traverse any items in an empty bag");
     }
 
     @Test