message: refactor(uri): Remove extra authority logic
  Remove extra logic in authority getter method which handles
  default ports.
diff: @@ -107,6 +107,7 @@ impl Uri {
  pub fn authority(&self) -> Option<&str> {
  if let Some(end) = self.authority_end {
  let index = self.scheme_end.map(|i| i + 3).unwrap_or(0);
  +
  Some(&self.source[index..end])
  } else {
  None
  