Remove repeated sentence in distributed tracing doc (#7906)

Signed-off-by: Peter Alfonsi <[email protected]>
Co-authored-by: Peter Alfonsi <[email protected]>

_observing-your-data/trace/distributed-tracing.md

@@ -155,7 +155,6 @@ Currently, the distributed tracing feature generates traces and spans for HTTP r
 2. **Exporters:** Exporters are responsible for persisting the data. OpenTelemetry provides several out-of-the-box exporters, and OpenSearch supports the following:
     - `LoggingSpanExporter`: Exports spans to a log file, generating a separate file in the logs directory `_otel_traces.log`. Default is `telemetry.otel.tracer.span.exporter.class=io.opentelemetry.exporter.logging.LoggingSpanExporter`.
     - `OtlpGrpcSpanExporter`: Exports spans through gRPC. To use this exporter, you need to install the `otel-collector` on the node. By default, it writes to the http://localhost:4317/ endpoint. To use this exporter, set the following static setting: `telemetry.otel.tracer.span.exporter.class=io.opentelemetry.exporter.otlp.trace.OtlpGrpcSpanExporter`.
-    - `LoggingSpanExporter`: Exports spans to a log file, generating a separate file in the logs directory `_otel_traces.log`. Default is `telemetry.otel.tracer.span.exporter.class=io.opentelemetry.exporter.logging.LoggingSpanExporter`.
 
 ### Sampling