Fixed code

Author: TetyanaYahodska

compute/cloud-client/src/test/java/compute/disks/InstanceAttachDiskIT.java

@@ -41,7 +41,7 @@
 import org.mockito.MockedStatic;
 
 @RunWith(JUnit4.class)
-@Timeout(value = 3)
+@Timeout(value = 5)
 public class InstanceAttachDiskIT {
   private static final String PROJECT_ID = System.getenv("GOOGLE_CLOUD_PROJECT");
   private static final String ZONE = "us-west1-a";

compute/cloud-client/src/test/java/compute/reservation/ReservationIT.java

@@ -36,7 +36,6 @@
 import compute.CreateRegionalInstanceTemplate;
 import compute.DeleteInstanceTemplate;
 import compute.DeleteRegionalInstanceTemplate;
-import compute.Util;
 import java.io.ByteArrayOutputStream;
 import java.io.IOException;
 import java.io.PrintStream;
@@ -94,7 +93,6 @@ public static void setUp()
     requireEnvVar("GOOGLE_CLOUD_PROJECT");
     stdOut = new ByteArrayOutputStream();
     System.setOut(new PrintStream(stdOut));
-    Util.cleanUpExistingReservations("test-reservation-", PROJECT_ID, ZONE);
 
     // Create instance template with GLOBAL location.
     CreateInstanceTemplate.createInstanceTemplate(PROJECT_ID, GLOBAL_INSTANCE_TEMPLATE_NAME);