KVM: clean up kvm_(set|get)_apic_base

kvm_get_apic_base() needlessly checks irqchip_in_kernel although it does
the same no matter what result of the check is. kvm_set_apic_base() also
checks for irqchip_in_kernel, but kvm_lapic_set_base() can handle this
case.
Signed-off-by: Gleb Natapov <gleb@redhat.com>
Signed-off-by: Avi Kivity <avi@redhat.com>

arch/x86/kvm/x86.c

@@ -246,9 +246,6 @@ static void drop_user_return_notifiers(void *ignore)
 
 u64 kvm_get_apic_base(struct kvm_vcpu *vcpu)
 {
-	if (irqchip_in_kernel(vcpu->kvm))
-		return vcpu->arch.apic_base;
-	else
 	return vcpu->arch.apic_base;
 }
 EXPORT_SYMBOL_GPL(kvm_get_apic_base);
@@ -256,10 +253,7 @@ EXPORT_SYMBOL_GPL(kvm_get_apic_base);
 void kvm_set_apic_base(struct kvm_vcpu *vcpu, u64 data)
 {
 	/* TODO: reserve bits check */
-	if (irqchip_in_kernel(vcpu->kvm))
 	kvm_lapic_set_base(vcpu, data);
-	else
-		vcpu->arch.apic_base = data;
 }
 EXPORT_SYMBOL_GPL(kvm_set_apic_base);