refactor: remove deprecated method

Author: posva

src/runtime.ts

@@ -1,13 +1,5 @@
 import type { RouteRecordRaw, TypesConfig } from 'vue-router'
 
-/**
- * Defines properties of the route for the current page component.
- *
- * @param route - route information to be added to this page
- * @deprecated - use `definePage` instead
- */
-export const _definePage = (route: DefinePage) => route
-
 /**
  * Defines properties of the route for the current page component.
  *