[SPARK-8508] [SQL] Ignores a test case to cleanup unnecessary testing output until #6882 is merged

Currently [the test case for SPARK-7862] [1] writes 100,000 lines of integer triples to stderr and makes Jenkins build output unnecessarily large and it's hard to debug other build errors. A proper fix is on the way in #6882. This PR ignores this test case temporarily until #6882 is merged.

[1]: https://github.com/apache/spark/pull/6404/files#diff-1ea02a6fab84e938582f7f87cc4d9ea1R641

Author: Cheng Lian <lian@databricks.com>

Closes #6925 from liancheng/spark-8508 and squashes the following commits:

41e5b47 [Cheng Lian] Ignores the test case until #6882 is merged

sql/hive/src/test/scala/org/apache/spark/sql/hive/execution/SQLQuerySuite.scala

@@ -653,7 +653,7 @@ class SQLQuerySuite extends QueryTest {
         .queryExecution.toRdd.count())
   }
 
-  test("test script transform for stderr") {
+  ignore("test script transform for stderr") {
     val data = (1 to 100000).map { i => (i, i, i) }
     data.toDF("d1", "d2", "d3").registerTempTable("script_trans")
     assert(0 ===