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