undo unrelated changes

Author: gengliangwang

sql/core/src/main/scala/org/apache/spark/sql/execution/datasources/v2/FileScanBuilder.scala

@@ -16,8 +16,8 @@
  */
 package org.apache.spark.sql.execution.datasources.v2
 
-import org.apache.spark.sql.sources.v2.reader.{ScanBuilder, SupportsPushDownRequiredColumns}
-import org.apache.spark.sql.types.{DataType, StructType}
+import org.apache.spark.sql.sources.v2.reader.{ScanBuilder, SupportsPushDownFilters, SupportsPushDownRequiredColumns}
+import org.apache.spark.sql.types.StructType
 
 abstract class FileScanBuilder(schema: StructType)
   extends ScanBuilder

sql/core/src/main/scala/org/apache/spark/sql/execution/datasources/v2/orc/OrcScanBuilder.scala

@@ -27,7 +27,7 @@ import org.apache.spark.sql.execution.datasources.orc.OrcFilters
 import org.apache.spark.sql.execution.datasources.v2.FileScanBuilder
 import org.apache.spark.sql.sources.Filter
 import org.apache.spark.sql.sources.v2.reader.{Scan, SupportsPushDownFilters}
-import org.apache.spark.sql.types.{DataType, StructType}
+import org.apache.spark.sql.types.StructType
 import org.apache.spark.sql.util.CaseInsensitiveStringMap
 
 case class OrcScanBuilder(