refactor(opencode): remove app service layer exports (#34517)

packages/opencode/src/agent/agent.ts

@@ -85,7 +85,7 @@ export class Service extends Context.Service<Service, Interface>()("@opencode/Ag
 
 export const use = serviceUse(Service)
 
-export const layer = Layer.effect(
+const layer = Layer.effect(
   Service,
   Effect.gen(function* () {
     const config = yield* Config.Service
@@ -438,15 +438,6 @@ export const layer = Layer.effect(
   }),
 )
 
-export const defaultLayer = layer.pipe(
-  Layer.provide(Plugin.defaultLayer),
-  Layer.provide(Provider.defaultLayer),
-  Layer.provide(Auth.defaultLayer),
-  Layer.provide(Config.defaultLayer),
-  Layer.provide(Skill.defaultLayer),
-  Layer.provide(locationServiceMapLayer),
-)
-
 const locationServiceMapNode = LayerNode.make({
   service: LocationServiceMap.Service,
   layer: locationServiceMapLayer,