scsi: hpsa: remove timeout from TURs

There are times when a TUR can take longer than the DEFAULT_TIMEOUT
value. The timeout code is not correct as the function exits with an
automatic as the completion variable...To be fixed later.

Remove the TUR timeout.

Reviewed-by: Scott Benesh <scott.benesh@microsemi.com>
Reviewed-by: Scott Teel <scott.teel@microsemi.com>
Signed-off-by: Don Brace <don.brace@microsemi.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>