libxl: remove redundant calls to libxl_evdisable_domain_death

Domain death watch is already disabled in libxlDomainCleanup.  No
need to disable it a second and third time.
Signed-off-by: NJim Fehlig <jfehlig@suse.com>

src/libxl/libxl_domain.c

@@ -439,9 +439,6 @@ libxlDomainObjPrivateDispose(void *obj)
 {
     libxlDomainObjPrivatePtr priv = obj;
 
-    if (priv->deathW)
-        libxl_evdisable_domain_death(priv->ctx, priv->deathW);
-
     libxlDomainObjFreeJob(priv);
     virChrdevFree(priv->devs);
     libxl_ctx_free(priv->ctx);
@@ -456,11 +453,6 @@ libxlDomainObjPrivateFree(void *data)
 {
     libxlDomainObjPrivatePtr priv = data;
 
-    if (priv->deathW) {
-        libxl_evdisable_domain_death(priv->ctx, priv->deathW);
-        priv->deathW = NULL;
-    }
-
     virObjectUnref(priv);
 }