delete_user_setting() and remove_action() were getting called with too many args. props rlerdorf. see #24210.



git-svn-id: https://core.svn.wordpress.org/trunk@24125 1a063a9b-81f0-0310-95a4-ce76da25c4cd
Required arguments can't follow optional arguments.

Make required arguments optional in confirm_blog_signup().

Mark arguments as required in _future_post_hook(), the walker method display_element(), get_author_link() (deprecated), and the WP_Widget constructor.

props rlerdorf.
see #24210.



git-svn-id: https://core.svn.wordpress.org/trunk@24126 1a063a9b-81f0-0310-95a4-ce76da25c4cd