[ADF-1873] Remove all deprecated code from ADF (#4145)

* remove deprecated code part 1

* remove deprecation step 2

* fix spellcheck

* fix

* fix lint

* fix not used import

* remove deprecation

* fix test first part after remove deprecation

* fix test

* fix sidebar demo shell

lib/core/services/authentication.service.ts

@@ -244,10 +244,10 @@ export class AuthenticationService {
     }
 
     /** Gets the URL to redirect to after login.
-     * @param provider Service provider. Can be "ECM", "BPM" or "ALL".
      * @returns The redirect URL
      */
-    getRedirect(provider: string): string {
+    getRedirect(): string {
+        let provider = <string> this.appConfig.get(AppConfigValues.PROVIDERS);
         return this.hasValidRedirection(provider) ? this.redirectUrl.url : null;
     }