refactor(core): remove infrastructure layer exports (#34624)

packages/core/src/process.ts

@@ -136,7 +136,7 @@ export const collectStream = (stream: Stream.Stream<Uint8Array, PlatformError>,
     },
   ).pipe(Effect.map((x) => ({ buffer: Buffer.concat(x.chunks), truncated: x.truncated })))
 
-export const layer = Layer.effect(
+const layer = Layer.effect(
   Service,
   Effect.gen(function* () {
     const spawner = yield* ChildProcessSpawner
@@ -256,7 +256,6 @@ export const layer = Layer.effect(
   }),
 )
 
-export const defaultLayer = layer.pipe(Layer.provide(CrossSpawnSpawner.defaultLayer))
 export const node = makeGlobalNode({ service: Service, layer: layer, deps: [CrossSpawnSpawner.node] })
 
 export * as AppProcess from "./process"