[DOCS] Remove "Save changes" statement from the query page of the Playground (#192945)

## Summary

On the ["View and modify queries"
page](https://www.elastic.co/guide/en/kibana/8.15/playground-query.html)
under the Playground documentation, there is a statement "Click Save
changes." But there is no such button on Kibana 8.15.1 and changes are
applied automatically, so this statement is not needed.

I can see "Save changes" button on 8.14.0, so I believe it disappears
from 8.15.0.

<img width="1440" alt="image"
src="https://github.com/user-attachments/assets/009d72fa-3adf-4c9b-8e49-f068df638755">
This commit is contained in:
Dai Sugimori 2024-09-20 22:45:29 +09:00 committed by GitHub
parent bddeac062a
commit 463a63603f
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@ -12,7 +12,6 @@ The {x} UI enables you to view and modify these queries.
* Click *View query* to open the visual query editor.
* Modify the query by selecting fields to query per index.
* Click *Save changes*.
[TIP]
====