Revert "Tell amplify to sign the user out of all devices (#11929)"

This reverts commit 6fbc025.

services/ui-src/src/utils/api/apiLib.ts

@@ -55,7 +55,7 @@ export async function loginUser(
 }
 
 export async function logoutUser(): Promise<void> {
-  await signOut({ global: true });
+  await signOut();
 }
 
 export async function refreshSession(): Promise<void> {