ata: libata: Fix syntax errors in comments

Delete the redundant word 'in'.
Signed-off-by: Xiang wangx <wangxiang@cdjrlc.com>
Signed-off-by: Damien Le Moal <damien.lemoal@opensource.wdc.com>

drivers/ata/libata-transport.c

@@ -9,7 +9,7 @@
  * and various sysfs attributes to expose these topologies and management
  * interfaces to user-space.
  *
- * There are 3 objects defined in in this class:
+ * There are 3 objects defined in this class:
  * - ata_port
  * - ata_link
  * - ata_device