Remove dead analytics and telemetry scaffolding

src/services/analytics/datadog.ts

@@ -1,20 +1,9 @@
 /**
  * Datadog analytics egress is disabled in this build.
  *
- * The exported functions remain so existing call sites do not need to branch.
+ * Only shutdown compatibility remains for existing cleanup paths.
  */
 
-export async function initializeDatadog(): Promise<boolean> {
-  return false
-}
-
 export async function shutdownDatadog(): Promise<void> {
   return
 }
-
-export async function trackDatadogEvent(
-  _eventName: string,
-  _properties: { [key: string]: boolean | number | undefined },
-): Promise<void> {
-  return
-}