KVM: arm64: Drop PTE_S2_MEMATTR_MASK

The only user of PTE_S2_MEMATTR_MASK macro had been removed since
commit a501e32 ("arm64: Clean up the default pgprot setting").
It has been about six years and no one has used it again.

Let's drop it.

Signed-off-by: Zenghui Yu <[email protected]>
Acked-by: Marc Zyngier <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Will Deacon <[email protected]>

Author: Zenghui Yu

arch/arm64/include/asm/pgtable-hwdef.h

@@ -190,7 +190,6 @@
  * Memory Attribute override for Stage-2 (MemAttr[3:0])
  */
 #define PTE_S2_MEMATTR(t)	(_AT(pteval_t, (t)) << 2)
-#define PTE_S2_MEMATTR_MASK	(_AT(pteval_t, 0xf) << 2)
 
 /*
  * EL2/HYP PTE/PMD definitions