* Removed ResourceLoaderGetStartupModules hook. (deprecated since 1.23)
* Removed getFormFields(), onSubmit() and onSuccess() from FormlessAction, as
these were meant specifically for FormAction instead.
+* Removed Action::execute().
+* Removed AjaxAddScript which has been obsolete since ResourceLoader and
+ is unused by any modern extension.
+* Removed maintenance/nextJobDB.php; no longer in use.
==== Renamed classes ====
* CLDRPluralRuleConverter_Expression to CLDRPluralRuleConverterExpression