Remove unused local variables
Test That First Item Is Nil When No Items Added
Test That First Item Will Be Returned
Test That Last Item Is Nil When No Items Added
Test That Last Item Will Be Returned
Test That HasNext Returns True With Two Items in List Pointing To The First
Test That HasNext Returns False With One Item in List Pointing To The First
Test That GetNext Returns Second Item When Pointing To The First
Test That GetNext Returns Second Item When Pointing To The First
Remove unused local variables