KVM: selftests: Use vm_create_without_vcpus() in hardware_disable_test

Use vm_create_without_vcpus() instead of open coding a rough equivalent
in hardware_disable_test.
Signed-off-by: NSean Christopherson <seanjc@google.com>
Signed-off-by: NPaolo Bonzini <pbonzini@redhat.com>

tools/testing/selftests/kvm/hardware_disable_test.c

@@ -104,9 +104,7 @@ static void run_test(uint32_t run)
 	for (i = 0; i < VCPU_NUM; i++)
 		CPU_SET(i, &cpu_set);
 
-	vm = vm_create(DEFAULT_GUEST_PHY_PAGES);
-	kvm_vm_elf_load(vm, program_invocation_name);
-	vm_create_irqchip(vm);
+	vm = vm_create_without_vcpus(VM_MODE_DEFAULT, DEFAULT_GUEST_PHY_PAGES);
 
 	pr_debug("%s: [%d] start vcpus\n", __func__, run);
 	for (i = 0; i < VCPU_NUM; ++i) {