[Docs] Remove ambiguous advice regarding TopN correctness (apache#17522)

docs/querying/topnquery.md

@@ -32,7 +32,7 @@ sidebar_label: "TopN"
 
 Apache Druid TopN queries return a sorted set of results for the values in a given dimension according to some criteria. Conceptually, they can be thought of as an approximate [GroupByQuery](../querying/groupbyquery.md) over a single dimension with an [Ordering](../querying/limitspec.md) spec. TopNs are much faster and resource efficient than GroupBys for this use case. These types of queries take a topN query object and return an array of JSON objects where each object represents a value asked for by the topN query.
 
-TopNs are approximate in that each data process will rank their top K results and only return those top K results to the Broker. K, by default in Druid, is `max(1000, threshold)`. In practice, this means that if you ask for the top 1000 items ordered, the correctness of the first ~900 items will be 100%, and the ordering of the results after that is not guaranteed. TopNs can be made more accurate by increasing the threshold.
+TopNs are approximate in that each data process will rank their top K results and only return those top K results to the Broker. K, by default in Druid, is `max(1000, threshold)`.
 
 A topN query object looks like: