[cleanup] Remove un-scoped ParseBlock from Parser

src/parser.h

Index: src/parser.h
diff --git a/src/parser.h b/src/parser.h
index b674a9d2e2323d8014edceab988c52474e0c6ca3..8ff7b176f47f34dd7f7e8eb822d9dcd817388884 100644
--- a/src/parser.h
+++ b/src/parser.h
@@ -1086,9 +1086,6 @@ class Parser : public ParserBase<ParserTraits> {
   TryStatement* ParseTryStatement(bool* ok);
   DebuggerStatement* ParseDebuggerStatement(bool* ok);
 
-  // Support for hamony block scoped bindings.
-  Block* ParseScopedBlock(ZoneList<const AstRawString*>* labels, bool* ok);
-
   // !%_IsSpecObject(result = iterator.next()) &&
   //     %ThrowIteratorResultNotAnObject(result)
   Expression* BuildIteratorNextResult(Expression* iterator, Variable* result,