Index: lnt/lnttool/admin.py
===================================================================
--- lnt/lnttool/admin.py
+++ lnt/lnttool/admin.py
@@ -188,7 +188,7 @@
            .format(machine=machine, **config.dict))
     response = config.session.delete(url, stream=True)
     _check_response(response)
-    for line in response.iter_lines():
+    for line in response.text.splitlines():
         sys.stdout.write(line + '\n')
         sys.stdout.flush()