drm/nouveau: remove unnecessary usage of object handles

No longer required in a lot of cases, as objects are identified over NVIF
via an alternate mechanism since the rework.

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
diff --git a/drivers/gpu/drm/nouveau/nouveau_display.c b/drivers/gpu/drm/nouveau/nouveau_display.c
index 614b32e..db6bc67 100644
--- a/drivers/gpu/drm/nouveau/nouveau_display.c
+++ b/drivers/gpu/drm/nouveau/nouveau_display.c
@@ -509,9 +509,8 @@
 		int i;
 
 		for (i = 0, ret = -ENODEV; ret && i < ARRAY_SIZE(oclass); i++) {
-			ret = nvif_object_init(&drm->device.object,
-					       NVDRM_DISPLAY, oclass[i],
-					       NULL, 0, &disp->disp);
+			ret = nvif_object_init(&drm->device.object, 0,
+					       oclass[i], NULL, 0, &disp->disp);
 		}
 
 		if (ret == 0) {