Deprecate remaining non-namespaced events

These will be replaced by etenders soon.

src/Event/AbstractConfigureRoutes.php

@@ -14,6 +14,9 @@ namespace Flarum\Event;
 use Flarum\Http\RouteCollection;
 use Flarum\Http\RouteHandlerFactory;
 
+/**
+ * @deprecated
+ */
 abstract class AbstractConfigureRoutes
 {
     /**

src/Event/ConfigureApiRoutes.php

@@ -12,9 +12,7 @@
 namespace Flarum\Event;
 
 /**
- * Configure API routes.
+ * @deprecated
- *
- * This event is fired when API routes are being registered.
  */
 class ConfigureApiRoutes extends AbstractConfigureRoutes
 {

src/Event/ConfigureForumRoutes.php

@@ -14,9 +14,7 @@ namespace Flarum\Event;
 use Flarum\Forum\Controller\FrontendController;
 
 /**
- * Configure forum routes.
+ * @deprecated
- *
- * This event is fired when routes for the forum client are being registered.
  */
 class ConfigureForumRoutes extends AbstractConfigureRoutes
 {

src/Event/ConfigureLocales.php

@@ -15,6 +15,9 @@ use DirectoryIterator;
 use Flarum\Locale\LocaleManager;
 use RuntimeException;
 
+/**
+ * @deprecated
+ */
 class ConfigureLocales
 {
     /**

src/Event/ConfigureMiddleware.php

@@ -13,6 +13,9 @@ namespace Flarum\Event;
 
 use Zend\Stratigility\MiddlewarePipe;
 
+/**
+ * @deprecated
+ */
 class ConfigureMiddleware
 {
     /**