Remove 'under development' note in suggester docs (#84366)

In the intro, we mention that parts of the feature are still under development.
This is not very helpful information for users, and could give the wrong
impression about its maturity.

docs/reference/search/suggesters.asciidoc

@@ -2,7 +2,6 @@
 === Suggesters
 
 Suggests similar looking terms based on a provided text by using a suggester. 
-Parts of the suggest feature are still under development.
 
 [source,console]
 --------------------------------------------------
@@ -29,18 +28,18 @@ POST my-index-000001/_search
 [[search-suggesters-api-request]]
 ==== {api-request-title}
 
-The suggest feature suggests similar looking terms based on a provided text by 
-using a suggester. The suggest request part is defined alongside the query part 
-in a `_search` request. If the query part is left out, only suggestions are 
+The suggest feature suggests similar looking terms based on a provided text by
+using a suggester. The suggest request part is defined alongside the query part
+in a `_search` request. If the query part is left out, only suggestions are
 returned.
 
 
 [[search-suggesters-api-example]]
 ==== {api-examples-title}
 
-Several suggestions can be specified per request. Each suggestion is identified 
-with an arbitrary name. In the example below two suggestions are requested. Both 
-`my-suggest-1` and `my-suggest-2` suggestions use the `term` suggester, but have 
+Several suggestions can be specified per request. Each suggestion is identified
+with an arbitrary name. In the example below two suggestions are requested. Both
+`my-suggest-1` and `my-suggest-2` suggestions use the `term` suggester, but have
 a different `text`.
 
 [source,console]