Revert of Reland of 'Optimize trivial regexp disjunctions' CL 1176453002

src/ast.h

Index: src/ast.h
diff --git a/src/ast.h b/src/ast.h
index 0dc9e6066630898e326880092c60b157e4e8e6a7..01154d37628a9f8518497f8428c8523922db54be 100644
--- a/src/ast.h
+++ b/src/ast.h
@@ -2872,9 +2872,6 @@
   int max_match() override { return max_match_; }
   ZoneList<RegExpTree*>* alternatives() { return alternatives_; }
  private:
-  bool SortConsecutiveAtoms(RegExpCompiler* compiler);
-  void RationalizeConsecutiveAtoms(RegExpCompiler* compiler);
-  void FixSingleCharacterDisjunctions(RegExpCompiler* compiler);
   ZoneList<RegExpTree*>* alternatives_;
   int min_match_;
   int max_match_;