KVM: s390: Remove unused parameter from __inject_sigp_restart()

It's not required, so drop it to make it clear that this interrupt
does not have any extra parameters.
Signed-off-by: Thomas Huth <thuth@redhat.com>
Link: https://lore.kernel.org/kvm/20190912070250.15131-1-thuth@redhat.comReviewed-by: Janosch Frank <frankja@linux.ibm.com>
Reviewed-by: David Hildenbrand <david@redhat.com>
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>

arch/s390/kvm/interrupt.c

@@ -1477,8 +1477,7 @@ static int __inject_sigp_stop(struct kvm_vcpu *vcpu, struct kvm_s390_irq *irq)
 	return 0;
 }
 
-static int __inject_sigp_restart(struct kvm_vcpu *vcpu,
-				 struct kvm_s390_irq *irq)
+static int __inject_sigp_restart(struct kvm_vcpu *vcpu)
 {
 	struct kvm_s390_local_interrupt *li = &vcpu->arch.local_int;
 
@@ -2007,7 +2006,7 @@ static int do_inject_vcpu(struct kvm_vcpu *vcpu, struct kvm_s390_irq *irq)
 		rc = __inject_sigp_stop(vcpu, irq);
 		break;
 	case KVM_S390_RESTART:
-		rc = __inject_sigp_restart(vcpu, irq);
+		rc = __inject_sigp_restart(vcpu);
 		break;
 	case KVM_S390_INT_CLOCK_COMP:
 		rc = __inject_ckc(vcpu);