refactor(core): consolidate references (#31539)

packages/opencode/src/tool/registry.ts

@@ -46,7 +46,6 @@ import { EventV2Bridge } from "@/event-v2-bridge"
 import { Agent } from "../agent/agent"
 import { Skill } from "../skill"
 import { Permission } from "@/permission"
-import { Reference } from "@/reference/reference"
 import { BackgroundJob } from "@/background/job"
 import { RuntimeFlags } from "@/effect/runtime-flags"
 import { ProviderV2 } from "@opencode-ai/core/provider"
@@ -91,7 +90,6 @@ export const layer: Layer.Layer<
   | Session.Service
   | BackgroundJob.Service
   | Provider.Service
-  | Reference.Service
   | LSP.Service
   | Instruction.Service
   | FSUtil.Service
@@ -350,7 +348,6 @@ export const defaultLayer = Layer.suspend(() =>
       Layer.provide(Session.defaultLayer),
       Layer.provide(BackgroundJob.defaultLayer),
       Layer.provide(Provider.defaultLayer),
-      Layer.provide(Reference.defaultLayer),
       Layer.provide(LSP.defaultLayer),
       Layer.provide(Instruction.defaultLayer),
       Layer.provide(FSUtil.defaultLayer),