message: style: remove needless lifetime
diff: @@ -277,7 +277,7 @@ enum CanonicalClassQuery {
  /// Looks up a Unicode class given a query. If one doesn't exist, then
  /// `None` is returned.
  -pub fn class<'a>(query: ClassQuery<'a>) -> Result<hir::ClassUnicode> {
  +pub fn class(query: ClassQuery) -> Result<hir::ClassUnicode> {
  use self::CanonicalClassQuery::*;
  match query.canonicalize()? {
  