Another discovery fix

Author: Nathan Kellenicki

package-lock.json

@@ -1,6 +1,6 @@
 {
   "name": "node-poweredup",
-  "version": "8.0.4",
+  "version": "8.0.5",
   "description": "A Javascript module to interface with LEGO Powered Up components.",
   "homepage": "https://github.com/nathankellenicki/node-poweredup/",
   "main": "dist/node/index-node.js",

package.json

@@ -72,7 +72,6 @@ export class PoweredUP extends EventEmitter {
     public async scan () {
         wantScan = true;
         // @ts-ignore
-        noble.removeAllListeners();
         noble.on("discover", this._discoveryEventHandler);
 
         if (ready) {
@@ -91,7 +90,6 @@ export class PoweredUP extends EventEmitter {
     public stop () {
         wantScan = false;
         // @ts-ignore
-        noble.removeAllListeners();
         noble.removeListener("discover", this._discoveryEventHandler);
         noble.stopScanning();
     }