[SPARK-14721][SQL] Remove HiveContext (part 2)

## What changes were proposed in this pull request?

This removes the class `HiveContext` itself along with all code usages associated with it. The bulk of the work was already done in #12485. This is mainly just code cleanup and actually removing the class.

Note: A couple of things will break after this patch. These will be fixed separately.
- the python HiveContext
- all the documentation / comments referencing HiveContext
- there will be no more HiveContext in the REPL (fixed by #12589)

## How was this patch tested?

No change in functionality.

Author: Andrew Or <andrew@databricks.com>

Closes #12585 from andrewor14/delete-hive-context.

1 files changed, 3 insertions, 4 deletions

diff --git a/examples/src/main/scala/org/apache/spark/examples/sql/hive/HiveFromSpark.scala b/examples/src/main/scala/org/apache/spark/examples/sql/hive/HiveFromSpark.scala
index b654a2c8d4..ff33091621 100644
--- a/examples/src/main/scala/org/apache/spark/examples/sql/hive/HiveFromSpark.scala
+++ b/examples/src/main/scala/org/apache/spark/examples/sql/hive/HiveFromSpark.scala
@@ -24,7 +24,6 @@ import com.google.common.io.{ByteStreams, Files}
 
 import org.apache.spark.{SparkConf, SparkContext}
 import org.apache.spark.sql._
-import org.apache.spark.sql.hive.HiveContext
 
 object HiveFromSpark {
   case class Record(key: Int, value: String)
@@ -43,9 +42,9 @@ object HiveFromSpark {
     // using HiveQL. Users who do not have an existing Hive deployment can still create a
     // HiveContext. When not configured by the hive-site.xml, the context automatically
     // creates metastore_db and warehouse in the current directory.
-    val hiveContext = new HiveContext(sc)
-    import hiveContext.implicits._
-    import hiveContext.sql
+    val sparkSession = SparkSession.withHiveSupport(sc)
+    import sparkSession.implicits._
+    import sparkSession.sql
 
     sql("CREATE TABLE IF NOT EXISTS src (key INT, value STRING)")
     sql(s"LOAD DATA LOCAL INPATH '${kv1File.getAbsolutePath}' INTO TABLE src")