RANGER-4076: PMD issue fix

Author: pradeepagrawal8184

hive-agent/src/main/java/org/apache/ranger/services/hive/client/HiveClient.java

@@ -46,7 +46,6 @@
 import java.sql.ResultSet;
 import java.sql.SQLException;
 import java.sql.SQLTimeoutException;
-import java.sql.Statement;
 import java.util.ArrayList;
 import java.util.HashMap;
 import java.util.List;
@@ -574,15 +573,15 @@ private List<String> getClmList(String columnNameMatching, List<String> dbList,
         return ret;
     }
 
-    private void close(Statement aStat) {
+    /*private void close(Statement aStat) {
         try {
             if (aStat != null) {
                 aStat.close();
             }
         } catch (SQLException e) {
             LOG.error("Unable to close SQL statement", e);
         }
-    }
+    }*/
 
     private void close(ResultSet aResultSet) {
         try {