refactor: remove unnecessary comments in ext_otel.py for improved code clarity

api/extensions/ext_otel.py

@@ -184,10 +184,8 @@ def init_app(app: DifyApp):
     )
     set_meter_provider(MeterProvider(resource=resource, metric_readers=[reader]))
 
-    # Get a meter instance
     meter = get_meter(__name__)
 
-    # Define the counter metric for HTTP client requests
     _http_client_response_counter = meter.create_counter(
         name="http.client.request.count",
         description="Counts outgoing HTTP client requests.",