input: Write a function to remove all duplicates from a given list of numbers and return the list with unique elements in their original order.
  def deleteDuplicates(list): 
      final_list = [] 
      for num in list: 
          if num not in final_list: 
              final_list.append(num) 
      return final_list
  
  assert deleteDuplicates([1, 2, 2, 3, 4, 4])==[1, 2, 3, 4]
  assert deleteDuplicates([5, 5, 5, 5])==[5]
  assert deleteDuplicates([1, 2, 3, 4])==[1, 2, 3, 4]
  assert deleteDuplicates([])==[]
  assert deleteDuplicates([3, 1, 2, 3, 1, 2])==[3, 1, 2]
output: def deleteDuplicates(list): 
      final_list = [] 
      for num in list: 
          if num not in final_list: 
              final_list.append(num) 
      return final_list