Lettuce: confirm deletion prompts on course team page

cms/djangoapps/contentstore/features/course-team.py

@@ -54,6 +54,8 @@ def delete_other_user(_step, name):
     to_delete_css = '.user-item .item-actions a.remove-user[data-id="{email}"]'.format(
         email="{0}{1}".format(name, EMAIL_EXTENSION))
     world.css_click(to_delete_css)
+    # confirm prompt
+    world.css_click(".wrapper-prompt-warning .action-primary")
 
 
 @step(u's?he deletes me from the course team')
@@ -61,6 +63,8 @@ def other_delete_self(_step):
     to_delete_css = '.user-item .item-actions a.remove-user[data-id="{email}"]'.format(
         email="robot+studio@edx.org")
     world.css_click(to_delete_css)
+    # confirm prompt
+    world.css_click(".wrapper-prompt-warning .action-primary")
 
 
 @step(u'I make "([^"]*)" a course team admin')