web: shrink flow build by not including router

Signed-off-by: Jens Langhammer <jens.langhammer@beryju.org>

web/src/interfaces/AdminInterface.ts

@@ -1,8 +1,5 @@
 import "construct-style-sheets-polyfill";
 
-// Elements that are used by SiteShell pages
-// And can't dynamically be imported
-import "../elements/CodeMirror";
 import "../elements/messages/MessageContainer";
 import { customElement } from "lit-element";
 import { me } from "../api/Users";