Remove unneeded branch

Author: wooorm

src/construct/heading_atx.rs

@@ -129,15 +129,10 @@ pub fn sequence_open(tokenizer: &mut Tokenizer) -> State {
         State::Next(StateName::HeadingAtxSequenceOpen)
     }
     // Always at least one `#`.
-    else if matches!(tokenizer.current, None | Some(b'\n')) {
+    else if matches!(tokenizer.current, None | Some(b'\t' | b'\n' | b' ')) {
         tokenizer.tokenize_state.size = 0;
         tokenizer.exit(Name::HeadingAtxSequence);
         State::Retry(StateName::HeadingAtxAtBreak)
-    } else if matches!(tokenizer.current, Some(b'\t' | b' ')) {
-        tokenizer.tokenize_state.size = 0;
-        tokenizer.exit(Name::HeadingAtxSequence);
-        tokenizer.attempt(State::Next(StateName::HeadingAtxAtBreak), State::Nok);
-        State::Retry(space_or_tab(tokenizer))
     } else {
         tokenizer.tokenize_state.size = 0;
         State::Nok