diff --git a/src/Subscription.ts b/src/Subscription.ts
index 923a4da155..ee72e41bd2 100644
--- a/src/Subscription.ts
+++ b/src/Subscription.ts
@@ -14,8 +14,6 @@ export type TeardownLogic = AnonymousSubscription | Function | void;
 export interface ISubscription extends AnonymousSubscription {
   unsubscribe(): void;
   isUnsubscribed: boolean;
-  add(teardown: TeardownLogic): ISubscription;
-  remove(sub: ISubscription): void;
 }
 
 /**