virtio: Avoid strange behaviour on removal

This device does a check on removal which is better handled in the actual
test. Move it.

Signed-off-by: Simon Glass <sjg@chromium.org>
diff --git a/test/dm/virtio_device.c b/test/dm/virtio_device.c
index b5c4523..fdda4da 100644
--- a/test/dm/virtio_device.c
+++ b/test/dm/virtio_device.c
@@ -100,6 +100,7 @@
 static int dm_test_virtio_remove(struct unit_test_state *uts)
 {
 	struct udevice *bus, *dev;
+	u8 status;
 
 	/* check probe success */
 	ut_assertok(uclass_first_device_err(UCLASS_VIRTIO, &bus));
@@ -117,6 +118,8 @@
 	ut_asserteq(-EKEYREJECTED, device_remove(bus, DM_REMOVE_ACTIVE_ALL));
 
 	ut_asserteq(false, device_active(dev));
+	virtio_get_status(dev, &status);
+	ut_assertok(status);
 
 	return 0;
 }