KVM: x86: Drop useless cast

Void pointers don't need no casting, drop it.
Signed-off-by: Mathias Krause <minipli@googlemail.com>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Gleb Natapov <gleb@redhat.com>

arch/x86/kvm/x86.c

@@ -5347,7 +5347,7 @@ static struct notifier_block pvclock_gtod_notifier = {
 int kvm_arch_init(void *opaque)
 {
 	int r;
-	struct kvm_x86_ops *ops = (struct kvm_x86_ops *)opaque;
+	struct kvm_x86_ops *ops = opaque;
 
 	if (kvm_x86_ops) {
 		printk(KERN_ERR "kvm: already loaded the other module\n");