KVM: x86: Drop unused return code from VCPU reset callback

Neither vmx nor svm nor the common part may generate an error on
kvm_vcpu_reset. So drop the return code.

Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
Signed-off-by: Gleb Natapov <gleb@redhat.com>
diff --git a/arch/x86/kvm/vmx.c b/arch/x86/kvm/vmx.c
index 473a5fe..f588171 100644
--- a/arch/x86/kvm/vmx.c
+++ b/arch/x86/kvm/vmx.c
@@ -4100,11 +4100,10 @@
 	return 0;
 }
 
-static int vmx_vcpu_reset(struct kvm_vcpu *vcpu)
+static void vmx_vcpu_reset(struct kvm_vcpu *vcpu)
 {
 	struct vcpu_vmx *vmx = to_vmx(vcpu);
 	u64 msr;
-	int ret;
 
 	vmx->rmode.vm86_active = 0;
 
@@ -4195,10 +4194,6 @@
 	update_exception_bitmap(&vmx->vcpu);
 
 	vpid_sync_context(vmx);
-
-	ret = 0;
-
-	return ret;
 }
 
 /*