Removing sponsors code.

Support new sponsor confirmation polling.
fixes #319

frontend/src/app/services/websocket.service.ts

@@ -126,10 +126,6 @@ export class WebsocketService {
     this.isTrackingTx = true;
   }
 
-  trackDonation(id: string) {
-    this.websocketSubject.next({ 'track-donation': id });
-  }
-
   stopTrackingTransaction() {
     if (!this.isTrackingTx) {
       return;
@@ -289,9 +285,5 @@ export class WebsocketService {
     if (response['git-commit']) {
       this.stateService.gitCommit$.next(response['git-commit']);
     }
-
-    if (response.donationConfirmed) {
-      this.stateService.donationConfirmed$.next(true);
-    }
   }
 }