tpm_tis: remove instance_finalize callback

It is never used, since ISA device are not hot-unpluggable.
Reviewed-by: NPeter Crosthwaite <peter.crosthwaite@xilinx.com>
Signed-off-by: NPaolo Bonzini <pbonzini@redhat.com>

hw/tpm/tpm_tis.c

@@ -896,13 +896,6 @@ static void tpm_tis_initfn(Object *obj)
                                 &s->mmio);
 }
 
-static void tpm_tis_uninitfn(Object *obj)
-{
-    TPMState *s = TPM(obj);
-
-    memory_region_del_subregion(get_system_memory(), &s->mmio);
-}
-
 static void tpm_tis_class_init(ObjectClass *klass, void *data)
 {
     DeviceClass *dc = DEVICE_CLASS(klass);
@@ -918,7 +911,6 @@ static const TypeInfo tpm_tis_info = {
     .parent = TYPE_ISA_DEVICE,
     .instance_size = sizeof(TPMState),
     .instance_init = tpm_tis_initfn,
-    .instance_finalize = tpm_tis_uninitfn,
     .class_init  = tpm_tis_class_init,
 };