formatting fix

Author: Sagar Agarwal

google-cloud-spanner/src/test/java/com/google/cloud/spanner/it/ITIntervalTest.java

@@ -16,11 +16,8 @@
 
 package com.google.cloud.spanner.it;
 
-import static com.google.cloud.spanner.testing.EmulatorSpannerHelper.isUsingEmulator;
 import static org.junit.Assert.assertEquals;
 import static org.junit.Assert.assertTrue;
-import static org.junit.Assume.assumeFalse;
-import static org.junit.Assume.assumeTrue;
 
 import com.google.cloud.Timestamp;
 import com.google.cloud.spanner.*;
@@ -29,7 +26,6 @@
 import java.util.Arrays;
 import java.util.Collections;
 import java.util.List;
-import java.util.Objects;
 import java.util.concurrent.ExecutionException;
 import java.util.concurrent.TimeoutException;
 import org.junit.AfterClass;