LibJS: Move binding_class_declaration_evaluation out of ClassDeclaration

Author: https://github.com/davidot
Commit: 232a8432b7
Pull-request: https://github.com/SerenityOS/serenity/pull/11957
Reviewed-by: https://github.com/emanuele6
Reviewed-by: https://github.com/linusg

Userland/Libraries/LibJS/AST.h

@@ -1284,8 +1284,6 @@ public:
 
     StringView name() const { return m_class_expression->name(); }
 
-    ThrowCompletionOr<Value> binding_class_declaration_evaluation(Interpreter& interpreter, GlobalObject& global_object) const;
-
 private:
     NonnullRefPtr<ClassExpression> m_class_expression;
 };