Update clause_specification_text.adoc

Author: chris-little

standard/clause_specification_text.adoc

@@ -973,7 +973,7 @@ In this example, additional semantics for the registered `dct` prefix are provid
 
 Example:
 
-In this example, extra attributes of the `Parameter` have been declared stating that the parameter is a more specific example in the context of a more general vocabulary. ** Note: not sure about the `statisticalMeasure` attribute and why square brackets?**
+In this example, extra attributes of the `Parameter` have been declared stating that the parameter is a more specific example in the context of a more general vocabulary.
 
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 ```json