[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, 5 deletions

diff --git a/dev/audit-release/sbt_app_hive/src/main/scala/HiveApp.scala b/dev/audit-release/sbt_app_hive/src/main/scala/HiveApp.scala
index 4a980ec071..f69d46cd17 100644
--- a/dev/audit-release/sbt_app_hive/src/main/scala/HiveApp.scala
+++ b/dev/audit-release/sbt_app_hive/src/main/scala/HiveApp.scala
@@ -20,10 +20,8 @@ package main.scala
 
 import scala.collection.mutable.{ListBuffer, Queue}
 
-import org.apache.spark.SparkConf
-import org.apache.spark.SparkContext
+import org.apache.spark.{SparkConf, SparkContext, SparkSession}
 import org.apache.spark.rdd.RDD
-import org.apache.spark.sql.hive.HiveContext
 
 case class Person(name: String, age: Int)
 
@@ -35,9 +33,9 @@ object SparkSqlExample {
       case None => new SparkConf().setAppName("Simple Sql App")
     }
     val sc = new SparkContext(conf)
-    val hiveContext = new HiveContext(sc)
+    val sparkSession = SparkSession.withHiveSupport(sc)
 
-    import hiveContext._
+    import sparkSession._
     sql("DROP TABLE IF EXISTS src")
     sql("CREATE TABLE IF NOT EXISTS src (key INT, value STRING)")
     sql("LOAD DATA LOCAL INPATH 'data.txt' INTO TABLE src")