Revert "feat(stats): add user ids to inference metrics"

This reverts commit 428ae6d21a.

packages/console/app/src/routes/zen/util/handler.ts

@@ -697,7 +697,6 @@ export async function handler(
     logger.metric({
       api_key: data.apiKey,
       workspace: data.workspaceID,
-      user_id: data.user.id,
       ...(() => {
         if (data.billing.subscription)
           return {

packages/console/function/src/log-processor.ts

@@ -132,7 +132,6 @@ function toLakeEvent(time: string, data: Record<string, unknown>) {
     error_cause2: string(data, "error.cause2"),
     api_key: string(data, "api_key"),
     workspace: string(data, "workspace"),
-    user_id: string(data, "user_id"),
     is_subscription: boolean(data, "isSubscription"), // removed
     subscription: string(data, "subscription"),
     response_length: integer(data, "response_length"),