atomicqueue: fix docs some more
diff --git a/gst/gstatomicqueue.c b/gst/gstatomicqueue.c
index c417b23..e6c9e58 100644
--- a/gst/gstatomicqueue.c
+++ b/gst/gstatomicqueue.c
@@ -374,7 +374,6 @@
 /**
  * gst_atomic_queue_length:
  * @queue: a #GstAtomicQueue
- * @data: the data
  *
  * Get the amount of items in the queue.
  *