input: def remove_whitespace(word_list):
      """
      Remove all the whitespaces from each string in the given list.
      >>> remove_whitespace(['Hello  World  ', 'Hi  there', 'Good  Morning'])
      ['HelloWorld', 'Hithere', 'GoodMorning']
      """
output:     for i in range(len(word_list)):
          word_list[i] = word_list[i].replace(" ", "")
      return word_list