Revert of [parser] Fix scopes in rewriting of for-of and destructuring assignments.

src/ast/scopes.h

Index: src/ast/scopes.h
diff --git a/src/ast/scopes.h b/src/ast/scopes.h
index d9027b45c5f2803aecd21b09862e2cb9e6151576..d5291183dd7726e8ed3abeca2e7dff7952982761 100644
--- a/src/ast/scopes.h
+++ b/src/ast/scopes.h
@@ -112,11 +112,6 @@
   // block scoped declarations. In that case it is removed from the scope
   // tree and its children are reparented.
   Scope* FinalizeBlockScope();
-
-  bool HasBeenRemoved() const;
-
-  // Find the first scope that hasn't been removed.
-  Scope* GetUnremovedScope();
 
   // Inserts outer_scope into this scope's scope chain (and removes this
   // from the current outer_scope_'s inner scope list).