fix linting

Author: Regine Urtegård

src/test/java/com/google/firebase/cloud/StorageClientIT.java

@@ -17,29 +17,23 @@
 package com.google.firebase.cloud;
 
 import static org.junit.Assert.assertEquals;
-import static org.junit.Assert.assertNotSame;
 import static org.junit.Assert.assertNull;
-import static org.junit.Assert.assertSame;
 import static org.junit.Assert.assertTrue;
 import static org.junit.Assert.fail;
 
 import com.google.auth.oauth2.GoogleCredentials;
-import com.google.cloud.firestore.Firestore;
 import com.google.cloud.storage.Blob;
 import com.google.cloud.storage.Bucket;
 import com.google.cloud.storage.Storage;
 import com.google.cloud.storage.StorageOptions;
 import com.google.common.io.CharStreams;
-import com.google.firebase.FirebaseApp;
-import com.google.firebase.FirebaseOptions;
 import com.google.firebase.testing.IntegrationTestUtils;
+import com.google.firebase.testing.ServiceAccount;
 import java.io.IOException;
 import java.io.InputStream;
 import java.io.InputStreamReader;
 import java.net.URL;
 import java.util.concurrent.TimeUnit;
-
-import com.google.firebase.testing.ServiceAccount;
 import org.junit.Test;
 
 public class StorageClientIT {