KVM: PPC: Remove unused define

The define VSID_ALL is unused. Let's remove it.
Signed-off-by: Alexander Graf <agraf@suse.de>

arch/powerpc/kvm/book3s_64_mmu_host.c

@@ -30,7 +30,6 @@
 #include "trace.h"
 
 #define PTE_SIZE 12
-#define VSID_ALL 0
 
 void kvmppc_mmu_invalidate_pte(struct kvm_vcpu *vcpu, struct hpte_cache *pte)
 {