code: def remove_prefix(text, prefix):
  	
  	null, prefix, rest = text.rpartition(prefix)
  	return rest
docs: Remove the prefix from the text if it exists.
  
  	>>> remove_prefix('underwhelming performance', 'underwhelming ')
  	'performance'
  
  	>>> remove_prefix('something special', 'sample')
  	'something special'