Drop test_udtf table when SingleSessionSuite test complete

Author: LuciferYang

sql/hive-thriftserver/src/test/scala/org/apache/spark/sql/hive/thriftserver/HiveThriftServer2Suites.scala

@@ -883,7 +883,7 @@ class SingleSessionSuite extends HiveThriftJdbcTest {
     s"--conf ${HIVE_THRIFT_SERVER_SINGLESESSION.key}=true" :: Nil
 
   test("share the temporary functions across JDBC connections") {
-    withMultipleConnectionJdbcStatement()(
+    withMultipleConnectionJdbcStatement("test_udtf")(
       { statement =>
         val jarPath = "../hive/src/test/resources/TestUDTF.jar"
         val jarURL = s"file://${System.getProperty("user.dir")}/$jarPath"