chore(reactivity): remove duplicated ReactiveEffectRunner interface (#14063)

packages/reactivity/src/effect.ts

@@ -470,11 +470,6 @@ function removeDep(link: Link) {
   }
 }
 
-export interface ReactiveEffectRunner<T = any> {
-  (): T
-  effect: ReactiveEffect
-}
-
 export function effect<T = any>(
   fn: () => T,
   options?: ReactiveEffectOptions,