Fix checkstyle

Author: cgivre

exec/java-exec/src/main/java/org/apache/drill/exec/planner/sql/handlers/CreateDaffodilSchemaHandler.java

@@ -21,9 +21,7 @@
 import com.google.common.collect.Lists;
 import org.apache.calcite.sql.SqlCharStringLiteral;
 import org.apache.calcite.sql.SqlNode;
-import org.apache.commons.io.FileUtils;
 import org.apache.drill.common.exceptions.DrillRuntimeException;
-import org.apache.drill.common.util.DrillFileUtils;
 import org.apache.drill.exec.exception.JarValidationException;
 import org.apache.drill.exec.exception.VersionMismatchException;
 import org.apache.drill.exec.physical.PhysicalPlan;
@@ -40,7 +38,6 @@
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
-import java.io.File;
 import java.io.IOException;
 import java.util.List;
 import java.util.UUID;

exec/java-exec/src/main/java/org/apache/drill/exec/schema/daffodil/DaffodilSchemaProvider.java

@@ -19,7 +19,6 @@
 
 import org.apache.drill.common.AutoCloseables;
 import org.apache.drill.common.config.DrillConfig;
-import org.apache.drill.common.scanner.ClassPathScanner;
 import org.apache.drill.common.scanner.persistence.ScanResult;
 import org.apache.drill.exec.coord.ClusterCoordinator;
 import org.apache.drill.exec.server.DrillbitContext;

exec/java-exec/src/test/java/org/apache/drill/exec/schema/daffodil/TestRemoteDaffodilSchemaRegistry.java

@@ -20,30 +20,20 @@
 import org.apache.drill.categories.SlowTest;
 import org.apache.drill.common.config.DrillConfig;
 import org.apache.drill.exec.ExecConstants;
-import org.apache.drill.exec.coord.ClusterCoordinator;
-import org.apache.drill.exec.coord.zk.ZKClusterCoordinator;
-import org.apache.drill.exec.proto.UserBitShared.Registry;
-import org.apache.drill.exec.store.sys.PersistentStoreProvider;
-import org.apache.drill.exec.store.sys.store.DataChangeVersion;
 import org.apache.drill.test.BaseDirTestWatcher;
 import org.apache.drill.test.ConfigBuilder;
-import org.apache.hadoop.fs.FileSystem;
-import org.apache.hadoop.fs.Path;
 import org.junit.After;
 import org.junit.Before;
 import org.junit.Rule;
 import org.junit.Test;
 import org.junit.experimental.categories.Category;
 
 import java.io.File;
-import java.io.IOException;
 import java.nio.file.Paths;
 
 import static org.junit.Assert.assertEquals;
 import static org.junit.Assert.assertFalse;
 import static org.junit.Assert.assertNotNull;
-import static org.junit.Assert.assertNull;
-import static org.junit.Assert.assertTrue;
 
 @Category({SlowTest.class})
 public class TestRemoteDaffodilSchemaRegistry {