Liquid and Testnet now accessable from the main site

fixes #35

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

@@ -1,15 +1,12 @@
 import { Injectable } from '@angular/core';
 import { HttpClient } from '@angular/common/http';
-import { ReplaySubject, Observable } from 'rxjs';
-import { environment } from 'src/environments/environment';
+import { Observable } from 'rxjs';
 import { shareReplay } from 'rxjs/operators';
 
 @Injectable({
   providedIn: 'root'
 })
 export class AssetsService {
-  network = environment.network;
-
   getAssetsJson$: Observable<any>;
   getAssetsMinimalJson$: Observable<any>;