remove unused imports

lib/api.ts

@@ -1,5 +1,4 @@
 import { util } from "./util";
-import { PeerErrorType, PeerEventType } from "./enums";
 
 export class API {
   constructor(private readonly _options: any) { }

lib/baseconnection.ts

@@ -1,6 +1,5 @@
 import { EventEmitter } from "eventemitter3";
 import { Peer } from "./peer";
-import { RTCPeerConnection } from "./adapter";
 import { ServerMessage } from "./servermessage";
 import { ConnectionType } from "./enums";