scsi: ufs: host: ufs-exynos: Remove unused defines

Remove #defines as those are not used anywhere in the driver file.

Link: https://lore.kernel.org/r/20220615121204.16642-1-alim.akhtar@samsung.com


Reviewed-by: Chanho Park <chanho61.park@samsung.com>
Signed-off-by: Alim Akhtar <alim.akhtar@samsung.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>