diff --git a/wally/discover/discover.py b/wally/discover/discover.py
index 3cab884..5802ac3 100644
--- a/wally/discover/discover.py
+++ b/wally/discover/discover.py
@@ -96,9 +96,4 @@
             msg_templ = "Unknown cluster type in 'discover' parameter: {0!r}"
             raise ValueError(msg_templ.format(cluster))
 
-    return nodes_to_run, clean_data
-
-
-def undiscover(clean_data):
-    if clean_data is not None:
-        fuel.clean_fuel_port_forwarding(clean_data)
+    return nodes_to_run