[SPARK-14535][SQL] Remove buildInternalScan from FileFormat

## What changes were proposed in this pull request?

Now `HadoopFsRelation` with all kinds of file formats can be handled in `FileSourceStrategy`, we can remove the branches for  `HadoopFsRelation` in `FileSourceStrategy` and the `buildInternalScan` API from `FileFormat`.

## How was this patch tested?

existing tests.

Author: Wenchen Fan <wenchen@databricks.com>

Closes #12300 from cloud-fan/remove.

1 files changed, 0 insertions, 13 deletions

diff --git a/sql/hive/src/main/scala/org/apache/spark/sql/hive/orc/OrcRelation.scala b/sql/hive/src/main/scala/org/apache/spark/sql/hive/orc/OrcRelation.scala
index 43f445edcb..e915f3dfe2 100644
--- a/sql/hive/src/main/scala/org/apache/spark/sql/hive/orc/OrcRelation.scala
+++ b/sql/hive/src/main/scala/org/apache/spark/sql/hive/orc/OrcRelation.scala
@@ -111,19 +111,6 @@ private[sql] class DefaultSource
     }
   }
 
-  override def buildInternalScan(
-      sqlContext: SQLContext,
-      dataSchema: StructType,
-      requiredColumns: Array[String],
-      filters: Array[Filter],
-      bucketSet: Option[BitSet],
-      inputFiles: Seq[FileStatus],
-      broadcastedConf: Broadcast[SerializableConfiguration],
-      options: Map[String, String]): RDD[InternalRow] = {
-    val output = StructType(requiredColumns.map(dataSchema(_))).toAttributes
-    OrcTableScan(sqlContext, output, filters, inputFiles).execute()
-  }
-
   override def buildReader(
       sqlContext: SQLContext,
       dataSchema: StructType,