udf: Remove unused UDF_DEFAULT_BLOCKSIZE

The define is unused. Remove it.

Signed-off-by: Jan Kara <jack@suse.cz>

fs/udf/super.c

@@ -73,8 +73,6 @@
 #define VDS_POS_TERMINATING_DESC	6
 #define VDS_POS_LENGTH			7
 
-#define UDF_DEFAULT_BLOCKSIZE 2048
-
 #define VSD_FIRST_SECTOR_OFFSET		32768
 #define VSD_MAX_SECTOR_OFFSET		0x800000