update comments

Author: nikhilc-microsoft

libraries/microsoft-agents-a365-observability-core/microsoft_agents_a365/observability/core/exporters/agent365_exporter.py

@@ -97,7 +97,7 @@ def export(self, spans: Sequence[ReadableSpan]) -> SpanExportResult:
                 payload = self._build_export_request(activities)
                 body = json.dumps(payload, separators=(",", ":"), ensure_ascii=False)
 
-                # Resolve endpoint: domain override > default URL > IL tenant fallback
+                # Resolve endpoint: domain override > default URL
                 if self._domain_override:
                     endpoint = self._domain_override
                 else: