message: impl: remove deprecated use of byte_classes
  The auto_configure routine will now never disable it.
diff: @@ -373,9 +373,6 @@ impl ExecBuilder {
  AhoCorasickBuilder::new()
  .match_kind(MatchKind::LeftmostFirst)
  .auto_configure(&lits)
  - // We always want this to reduce size, regardless
  - // of what auto-configure does.
  - .byte_classes(true)
  .build_with_size::<u32, _, _>(&lits)
  // This should never happen because we'd long exceed the
  // compilation limit for regexes first.
  