Remove suggest flag from index stats docs (#85479)

docs/reference/rest-api/common-parms.asciidoc

@@ -522,9 +522,6 @@ of each Lucene index file.
 `store`::
 Size of the index in <<byte-units, byte units>>.
 
-`suggest`::
-<<search-suggesters,Suggester>> statistics.
-
 `translog`::
 <<index-modules-translog,Translog>> statistics.