iommu/vt-d: Drop unused cap_super_offset()

The macro is unused. Drop the dead code.

Signed-off-by: Yury Norov (NVIDIA) <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Lu Baolu <[email protected]>
Signed-off-by: Joerg Roedel <[email protected]>

Author: YuryNorov

drivers/iommu/intel/iommu.h

@@ -173,8 +173,6 @@
 #define cap_pgsel_inv(c)	(((c) >> 39) & 1)
 
 #define cap_super_page_val(c)	(((c) >> 34) & 0xf)
-#define cap_super_offset(c)	(((find_first_bit(&cap_super_page_val(c), 4)) \
-					* OFFSET_STRIDE) + 21)
 
 #define cap_fault_reg_offset(c)	((((c) >> 24) & 0x3ff) * 16)
 #define cap_max_fault_reg_offset(c) \