arm/arm64: KVM: Remove hyp_kern_va helper

hyp_kern_va is now completely unused, so let's remove it entirely.
Signed-off-by: NMarc Zyngier <marc.zyngier@arm.com>
Signed-off-by: NChristoffer Dall <christoffer.dall@linaro.org>

arch/arm/include/asm/kvm_hyp.h

@@ -26,7 +26,6 @@
 #define __hyp_text __section(.hyp.text) notrace
 
 #define kern_hyp_va(v) (v)
-#define hyp_kern_va(v) (v)
 
 #define __ACCESS_CP15(CRn, Op1, CRm, Op2)	\
 	"mrc", "mcr", __stringify(p15, Op1, %0, CRn, CRm, Op2), u32

arch/arm64/include/asm/kvm_hyp.h

@@ -36,18 +36,6 @@ static inline unsigned long __kern_hyp_va(unsigned long v)
 
 #define kern_hyp_va(v) (typeof(v))(__kern_hyp_va((unsigned long)(v)))
 
-static inline unsigned long __hyp_kern_va(unsigned long v)
-{
-	u64 offset = PAGE_OFFSET - HYP_PAGE_OFFSET;
-	asm volatile(ALTERNATIVE("add %0, %0, %1",
-				 "nop",
-				 ARM64_HAS_VIRT_HOST_EXTN)
-		     : "+r" (v) : "r" (offset));
-	return v;
-}
-
-#define hyp_kern_va(v) (typeof(v))(__hyp_kern_va((unsigned long)(v)))
-
 #define read_sysreg_elx(r,nvh,vh)					\
 	({								\
 		u64 reg;						\