Simplify

docs/messaging/messaging-spans.md

@@ -216,7 +216,7 @@ Span kind SHOULD be set according to the following table, based on the operation
 | `send`         | `PRODUCER` if the context of the "Send" span is used as creation context, otherwise `CLIENT`. |
 | `receive`      | `CLIENT`    |
 | `process`      | `CONSUMER`  |
-| `settle`       | `CLIENT` if the span models a synchronous call to the intermediary. Otherwise `INTERNAL` |
+| `settle`       | `CLIENT`    |
 
 Setting span kinds according to this table allows analysis tools to interpret spans
 and relationships between them without the need for additional semantic hints.