refactor: 晋升族整文件退役加生产调用点清理

crates/oxide_vm/src/vm/gc_hooks.rs

@@ -107,6 +107,7 @@ impl Vm {
     }
 
     /// GC 指针重写（session 搬移后调用）。与 `for_each_value` 字段一一对应。
+    #[allow(dead_code)]
     pub(crate) fn rewrite_values(&mut self, mut rewrite: impl FnMut(JsValue) -> JsValue) {
         for value in &mut self.regs {
             *value = rewrite(*value);

crates/oxide_vm/src/vm/vmhost.rs

@@ -194,8 +194,8 @@ impl oxide_runtime_api::VmHost for Vm {
             || std::ptr::eq(p, self.async_function_proto.as_ptr())
             || std::ptr::eq(p, self.async_generator_function_proto.as_ptr())
     }
-    fn promote_if_needed_for_write_ptr(&mut self, target_ptr: *mut JsObject, value: JsValue) -> JsValue {
-        self.promote_if_needed_for_write_ptr(target_ptr, value)
+    fn promote_if_needed_for_write_ptr(&mut self, _target_ptr: *mut JsObject, value: JsValue) -> JsValue {
+        value
     }
     fn step_rng(&mut self) {
         self.step_rng()