Apply simplified calls.

src/App.tsx

@@ -12,7 +12,6 @@ import { Unauthorized } from 'components/NonAuthUser/Unauthorized/Unauthorized';
 import { HomePage } from 'components/AuthUser/Dashboard/HomePage/HomePage';
 import { AuthContext } from 'components/AuthUser/AuthContext';
 import { configDjangoCookieName } from 'api/configDjangoCookieName';
-import { fetchCookie } from 'api/fetchCookie';
 import { Dashboard } from 'components/AuthUser/Dashboard/Dashboard';
 import { isAuthenticated } from 'api/isAuthenticated';
 import { muiTheme } from 'App.style';
@@ -25,14 +24,13 @@ export const App: FC = () => {
   configDjangoCookieName();
   const [role, setRole] = useState('');
   const [isAuth, setIsAuth] = useState<boolean>(false);
-  const [isCookieFetched, setIsCookieFetched] = useState<string>('');
 
   const value = { role, setRole, isAuth, setIsAuth };
 
   useEffect(() => {
     // Initialize asking the server if this session is already logged in.
-    isAuthenticated().then((state) => setIsAuth(state));
-    getRole(setRole);
+    isAuthenticated().then((responseState) => setIsAuth(responseState));
+    getRole().then((responseRole) => setRole(responseRole));
   }, [isAuth, role]);
 
   return (