Cleaned up imports

Author: Bernardo-MG

src/app/authentication/service/authentication.service.ts

@@ -1,9 +1,9 @@
-import { HttpClient, HttpErrorResponse } from '@angular/common/http';
+import { HttpClient } from '@angular/common/http';
 import { Injectable } from '@angular/core';
 import { ApiResponse } from '@app/api/model/api-response';
 import { environment } from '@environments/environment';
-import { Observable, throwError } from 'rxjs';
-import { catchError, map } from 'rxjs/operators';
+import { Observable } from 'rxjs';
+import { map } from 'rxjs/operators';
 import { LoginStatus } from '../model/login-status';
 import { User } from '../model/user';