Remove reference to paywall in delete_record

- Fix delete route. The declaration of paywall was removed [here][1].

[1]: https://github.com/kennethreitz/elephant/commit/ef4657e618be03b28152fc7121828c92a262027d

elephant.py

@@ -235,8 +235,6 @@ def put_record(uuid):
 def delete_record(uuid):
     """Deletes a given record."""
 
-    paywall(safe=False)
-
     collection[uuid].delete()
     return redirect('/')