docs: remove reference to ModulePrivateRuntimeConfig

Co-authored-by: Bobbie Goede <bobbiegoede@gmail.com>

Author: danielroe

README.md

@@ -63,10 +63,6 @@ export interface ModulePublicRuntimeConfig {
   NAME: string
 }
 
-export interface ModulePrivateRuntimeConfig {
-  PRIVATE_NAME: string
-}
-
 export default defineNuxtModule<ModuleOptions>({
   meta: {
     name: 'my-module',