input: Write a function to remove all the whitespaces from each string in a given list of strings.
  
  Example Input:
  ['Hello World ', 'Hi there', 'Good Morning']
  
  Example Output:
  def remove_whitespace(word_list):
      return [word.replace(" ", "") for word in word_list]
  
  assert remove_whitespace(['Hello  World  ', 'Hi  there', 'Good  Morning'])==['HelloWorld', 'Hithere', 'GoodMorning']`
output: def remove_whitespace(word_list):
      return [word.replace(" ", "") for word in word_list]