Add a method to mark a shuttle as not at a stop

src/repositories/shuttle/RedisShuttleRepository.ts

@@ -423,6 +423,10 @@ export class RedisShuttleRepository extends BaseRedisRepository implements Shutt
     await this.redisClient.sAdd(this.shuttleIsAtStopKey, shuttleId);
   }
 
+  private async markShuttleAsNotAtStop(shuttleId: string) {
+    await this.redisClient.sRem(this.shuttleIsAtStopKey, shuttleId);
+  }
+
   private async checkIfShuttleIsAtStop(shuttleId: string) {
     return await this.redisClient.sIsMember(this.shuttleIsAtStopKey, shuttleId);
   }