Addressing comments

Author: schmidt-sebastian

packages/firestore/src/core/types.ts

@@ -26,11 +26,6 @@ export type BatchId = number;
  */
 export type TargetId = number;
 
-/**
- * A randomly-generated key assigned to each Firestore instance at startup.
- */
-export type InstanceKey = string;
-
 // TODO(b/35918695): In GRPC / node, tokens are Uint8Array. In WebChannel,
 // they're strings. We should probably (de-)serialize to a common internal type.
 export type ProtoByteString = Uint8Array | string;