Update auth pod test. (#5954)

Author: granluo

.github/workflows/auth.yml

@@ -94,10 +94,8 @@ jobs:
     - name: Install Secret FIREGSignInInfo.h
       run: scripts/decrypt_gha_secret.sh scripts/gha-encrypted/FIREGSignInInfo.h.gpg \
           quickstart-ios/TestUtils/FIREGSignInInfo.h "$signin_secret"
-    - name: Test objc quickstart
-      run: ([ -z $plist_secret ] || scripts/third_party/travis/retry.sh scripts/test_quickstart.sh Authentication)
     - name: Test swift quickstart
-      run: ([ -z $plist_secret ] || scripts/third_party/travis/retry.sh scripts/test_quickstart.sh Authentication swift)
+      run: ([ -z $plist_secret ] || scripts/third_party/travis/retry.sh scripts/test_quickstart.sh Authentication)
 
   auth-cron-only:
     # Don't run on private repo.