Fixes gcc '-Wunused-but-set-variable' warning:
arch/x86/kvm/x86.c: In function kvm_make_scan_ioapic_request_mask:
arch/x86/kvm/x86.c:7911:7: warning: variable called set but not
used [-Wunused-but-set-variable]
It is not used since commit 
7ee30bc132c6 ("KVM: x86: deliver KVM
IOAPIC scan request to target vCPUs")
Signed-off-by: Mao Wenan <maowenan@huawei.com>
Fixes: 7ee30bc132c6 ("KVM: x86: deliver KVM IOAPIC scan request to target vCPUs")
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
 
                                       unsigned long *vcpu_bitmap)
 {
        cpumask_var_t cpus;
-       bool called;
 
        zalloc_cpumask_var(&cpus, GFP_ATOMIC);
 
-       called = kvm_make_vcpus_request_mask(kvm, KVM_REQ_SCAN_IOAPIC,
-                                            vcpu_bitmap, cpus);
+       kvm_make_vcpus_request_mask(kvm, KVM_REQ_SCAN_IOAPIC,
+                                   vcpu_bitmap, cpus);
 
        free_cpumask_var(cpus);
 }