[SPARK-13475][TESTS][SQL] HiveCompatibilitySuite should still run in PR builder even if a PR only changes sql/core

## What changes were proposed in this pull request?

`HiveCompatibilitySuite` should still run in PR build even if a PR only changes sql/core. So, I am going to remove `ExtendedHiveTest` annotation from `HiveCompatibilitySuite`.

https://issues.apache.org/jira/browse/SPARK-13475

Author: Yin Huai <[email protected]>

Closes apache#11351 from yhuai/SPARK-13475.

Author: yhuai

sql/hive/compatibility/src/test/scala/org/apache/spark/sql/hive/execution/HiveCompatibilitySuite.scala

@@ -25,12 +25,10 @@ import org.scalatest.BeforeAndAfter
 
 import org.apache.spark.sql.SQLConf
 import org.apache.spark.sql.hive.test.TestHive
-import org.apache.spark.tags.ExtendedHiveTest
 
 /**
  * Runs the test cases that are included in the hive distribution.
  */
-@ExtendedHiveTest
 class HiveCompatibilitySuite extends HiveQueryFileTest with BeforeAndAfter {
   // TODO: bundle in jar files... get from classpath
   private lazy val hiveQueryDir = TestHive.getHiveFile(