Revert "Update waterfall_dialog.py"

Emily Olshefski · Emily Olshefski · commit 1502f134c49c · 2020-04-01T13:21:25.000-07:00
This reverts commit 86fee3b.
diff --git a/libraries/botbuilder-dialogs/botbuilder/dialogs/waterfall_dialog.py b/libraries/botbuilder-dialogs/botbuilder/dialogs/waterfall_dialog.py
@@ -32,7 +32,6 @@ def __init__(self, dialog_id: str, steps: [Coroutine] = None):
     def add_step(self, step):
         """
         Adds a new step to the waterfall.
-        
         :param step: Step to add
         :return: Waterfall dialog for fluent calls to `add_step()`.
         """
