HBASE-28568 Incremental backup set does not correctly shrink (addendum) (#5917)

Import the correct shaded Guava and run spotless:apply.

Signed-off-by: Duo Zhang <zhangduo@apache.org>

Author: ndimiduk

hbase-backup/src/main/java/org/apache/hadoop/hbase/backup/impl/BackupAdminImpl.java

@@ -21,7 +21,6 @@
 import java.util.ArrayList;
 import java.util.Arrays;
 import java.util.Collections;
-import java.util.HashMap;
 import java.util.HashSet;
 import java.util.List;
 import java.util.Map;

hbase-backup/src/test/java/org/apache/hadoop/hbase/backup/TestBackupDelete.java

@@ -31,7 +31,6 @@
 import org.apache.hadoop.hbase.testclassification.LargeTests;
 import org.apache.hadoop.hbase.util.EnvironmentEdge;
 import org.apache.hadoop.hbase.util.EnvironmentEdgeManager;
-import org.apache.hadoop.thirdparty.com.google.common.collect.Sets;
 import org.apache.hadoop.util.ToolRunner;
 import org.junit.Assert;
 import org.junit.ClassRule;
@@ -41,6 +40,7 @@
 import org.slf4j.LoggerFactory;
 
 import org.apache.hbase.thirdparty.com.google.common.collect.Lists;
+import org.apache.hbase.thirdparty.com.google.common.collect.Sets;
 
 @Category(LargeTests.class)
 public class TestBackupDelete extends TestBackupBase {