[parser] Remove hoist_scope from DeclarationDescriptor

src/parsing/parser-base.h

Index: src/parsing/parser-base.h
diff --git a/src/parsing/parser-base.h b/src/parsing/parser-base.h
index 18366443b70c1955069e97ec1026fb9d2ce493d7..7df88fa1e140ee17699061b0063dfb8e93476f33 100644
--- a/src/parsing/parser-base.h
+++ b/src/parsing/parser-base.h
@@ -609,7 +609,6 @@ class ParserBase {
   struct DeclarationDescriptor {
     enum Kind { NORMAL, PARAMETER };
     Scope* scope;
-    Scope* hoist_scope;
     VariableMode mode;
     int declaration_pos;
     int initialization_pos;
@@ -3665,7 +3664,6 @@ typename ParserBase<Impl>::BlockT ParserBase<Impl>::ParseVariableDeclarations(
   }
 
   parsing_result->descriptor.scope = scope();
-  parsing_result->descriptor.hoist_scope = nullptr;
 
   // The scope of a var/const declared variable anywhere inside a function
   // is the entire function (ECMA-262, 3rd, 10.1.3, and 12.2). The scope