Revert [SPARK-3011][SQL] _temporary directory should be filtered out by sqlContext.parquetFile

Reverts #1924 due to build failures with hadoop 0.23.

Author: Michael Armbrust <michael@databricks.com>

Closes #1949 from marmbrus/revert1924 and squashes the following commits:

6bff940 [Michael Armbrust] Revert "[SPARK-3011][SQL] _temporary directory should be filtered out by sqlContext.parquetFile"

sql/core/src/main/scala/org/apache/spark/sql/parquet/ParquetTypes.scala

@@ -378,8 +378,7 @@ private[parquet] object ParquetTypesConverter extends Logging {
 
     val children = fs.listStatus(path).filterNot { status =>
       val name = status.getPath.getName
-      name(0) == '.' || name == FileOutputCommitter.SUCCEEDED_FILE_NAME || 
-        name == FileOutputCommitter.TEMP_DIR_NAME
+      name(0) == '.' || name == FileOutputCommitter.SUCCEEDED_FILE_NAME
     }
 
     // NOTE (lian): Parquet "_metadata" file can be very slow if the file consists of lots of row