chore: revert

Author: sxzz

packages/runtime-core/src/apiWatch.ts

@@ -378,13 +378,6 @@ function doWatch(
 
   const effect = new ReactiveEffect(getter, scheduler)
 
-  const unwatch = () => {
-    effect.stop()
-    if (instance && instance.scope) {
-      remove(instance.scope.effects!, effect)
-    }
-  }
-
   if (__DEV__) {
     effect.onTrack = onTrack
     effect.onTrigger = onTrigger
@@ -406,6 +399,13 @@ function doWatch(
     effect.run()
   }
 
+  const unwatch = () => {
+    effect.stop()
+    if (instance && instance.scope) {
+      remove(instance.scope.effects!, effect)
+    }
+  }
+
   if (__SSR__ && ssrCleanup) ssrCleanup.push(unwatch)
   return unwatch
 }