fix: Remove stale comment

Author: rhcarvalho

packages/core/src/request.ts

@@ -37,8 +37,6 @@ export function eventToSentryRequest(event: Event, api: API): SentryRequest {
   if (useEnvelope) {
     const envelopeHeaders = JSON.stringify({
       event_id: event.event_id,
-      // We need to add * 1000 since we divide it by 1000 by default but JS works with ms precision
-      // The reason we use timestampWithMs here is that all clocks across the SDK use the same clock
       sent_at: new Date().toISOString(),
     });
     const itemHeaders = JSON.stringify({