KVM: remove #ifndef CONFIG_S390 around kvm_vcpu_wake_up

The #ifndef was protecting a missing halt_wakeup stat, but that is no
longer necessary.
Acked-by: Christian Borntraeger <borntraeger@de.ibm.com>
Signed-off-by: Radim Krčmář <rkrcmar@redhat.com>
Reviewed-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

virt/kvm/kvm_main.c

@@ -2195,7 +2195,6 @@ void kvm_vcpu_block(struct kvm_vcpu *vcpu)
 }
 EXPORT_SYMBOL_GPL(kvm_vcpu_block);
 
-#ifndef CONFIG_S390
 void kvm_vcpu_wake_up(struct kvm_vcpu *vcpu)
 {
 	struct swait_queue_head *wqp;
@@ -2225,7 +2224,6 @@ void kvm_vcpu_kick(struct kvm_vcpu *vcpu)
 	put_cpu();
 }
 EXPORT_SYMBOL_GPL(kvm_vcpu_kick);
-#endif /* !CONFIG_S390 */
 
 int kvm_vcpu_yield_to(struct kvm_vcpu *target)
 {