[fullcodegen] Remove dead hole check logic

src/compiler/ast-graph-builder.h

Index: src/compiler/ast-graph-builder.h
diff --git a/src/compiler/ast-graph-builder.h b/src/compiler/ast-graph-builder.h
index 975e08094c4752da0d7da5baf56c920f0a6e62ff..0211c721530b9022671ca8176c9b614c23f664b6 100644
--- a/src/compiler/ast-graph-builder.h
+++ b/src/compiler/ast-graph-builder.h
@@ -309,15 +309,8 @@ class AstGraphBuilder : public AstVisitor<AstGraphBuilder> {
 
   // Builders for error reporting at runtime.
   Node* BuildThrowError(Node* exception, BailoutId bailout_id);
-  Node* BuildThrowReferenceError(Variable* var, BailoutId bailout_id);
   Node* BuildThrowConstAssignError(BailoutId bailout_id);
 
-  // Builders for dynamic hole-checks at runtime.
-  Node* BuildHoleCheckThenThrow(Node* value, Variable* var, Node* not_hole,
-                                BailoutId bailout_id);
-  Node* BuildHoleCheckElseThrow(Node* value, Variable* var, Node* for_hole,
-                                BailoutId bailout_id);
-
   // Builders for non-local control flow.
   Node* BuildReturn(Node* return_value);
   Node* BuildThrow(Node* exception_value);