KVM: ppc: Remove unmatched kunmap() call

We're not calling kmap() now, so we shouldn't call kunmap() either. This has no
practical effect in the non-highmem case, which is why it hasn't caused more
obvious problems.

Pointed out by Anthony Liguori.
Signed-off-by: Hollis Blanchard <hollisb@us.ibm.com>
Signed-off-by: Avi Kivity <avi@qumranet.com>

arch/powerpc/kvm/44x_tlb.c

@@ -116,8 +116,6 @@ static void kvmppc_44x_shadow_release(struct kvm_vcpu *vcpu,
 	struct tlbe *stlbe = &vcpu->arch.shadow_tlb[index];
 	struct page *page = vcpu->arch.shadow_pages[index];
 
-	kunmap(vcpu->arch.shadow_pages[index]);
-
 	if (get_tlb_v(stlbe)) {
 		if (kvmppc_44x_tlbe_is_writable(stlbe))
 			kvm_release_page_dirty(page);