chore: drop dead imports across opencode/core/llm (#28720)

packages/llm/src/llm.ts

@@ -14,7 +14,6 @@ import {
   ToolChoice,
   ToolDefinition,
   type ContentPart,
-  ToolCallPart,
   ToolResultPart,
 } from "./schema"
 import { make as makeTool, type ToolSchema } from "./tool"

packages/llm/src/route/transport/websocket.ts

@@ -1,7 +1,6 @@
 import { Cause, Context, Effect, Layer, Queue, Stream } from "effect"
 import { Headers } from "effect/unstable/http"
-import { Auth } from "../auth"
-import { LLMError, TransportReason, type LLMRequest } from "../../schema"
+import { LLMError, TransportReason } from "../../schema"
 import * as HttpTransport from "./http"
 import type { Transport } from "./index"