hook to remove a core special page
$list: list (array) of core special pages
+'SpecialPageAfterExecute': called after SpecialPage::execute
+$special: the SpecialPage object
+$subPage: the subpage string or null if no subpage was specified
+
+'SpecialPageBeforeExecute': called before SpecialPage::execute
+$special: the SpecialPage object
+$subPage: the subpage string or null if no subpage was specified
+
'SpecialPasswordResetOnSubmit': when executing a form submission on Special:PasswordReset
$users: array of User objects
$data: array of data submitted by the user