[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, 2 insertions, 1 deletions

diff --git a/python/pyspark/sql/context.py b/python/pyspark/sql/context.py
index ac98639f3a..600a6e0bc2 100644
--- a/python/pyspark/sql/context.py
+++ b/python/pyspark/sql/context.py
@@ -603,6 +603,7 @@ class SQLContext(object):
         return DataFrameReader(self)
 
 
+# TODO(andrew): remove this too
 class HiveContext(SQLContext):
     """A variant of Spark SQL that integrates with data stored in Hive.
 
@@ -632,7 +633,7 @@ class HiveContext(SQLContext):
             raise
 
     def _get_hive_ctx(self):
-        return self._jvm.HiveContext(self._jsc.sc())
+        return self._jvm.SparkSession.withHiveSupport(self._jsc.sc()).wrapped()
 
     def refreshTable(self, tableName):
         """Invalidate and refresh all the cached the metadata of the given