Removed @UpdateForV9 annotation since ?wait_for_active_shards has been removed

Author: mattc58

test/framework/src/main/java/org/elasticsearch/test/rest/ESRestTestCase.java

@@ -1992,19 +1992,9 @@ protected static boolean indexExists(RestClient client, String index) throws IOE
         return RestStatus.OK.getStatus() == response.getStatusLine().getStatusCode();
     }
 
-    /**
-     * Deprecation message emitted since 7.12.0 for the rest of the 7.x series. Can be removed in v9 since it is not
-     * emitted in v8. Note that this message is also permitted in certain YAML test cases, it can be removed there too.
-     * See https://github.com/elastic/elasticsearch/issues/66419 for more details.
-     */
-    @UpdateForV9(owner = UpdateForV9.Owner.DATA_MANAGEMENT)
-    private static final String WAIT_FOR_ACTIVE_SHARDS_DEFAULT_DEPRECATION_MESSAGE = "the default value for the ?wait_for_active_shards "
-        + "parameter will change from '0' to 'index-setting' in version 8; specify '?wait_for_active_shards=index-setting' "
-        + "to adopt the future default behaviour, or '?wait_for_active_shards=0' to preserve today's behaviour";
 
     protected static void closeIndex(String index) throws IOException {
         final Request closeRequest = new Request(HttpPost.METHOD_NAME, "/" + index + "/_close");
-        closeRequest.setOptions(expectVersionSpecificWarnings(v -> v.compatible(WAIT_FOR_ACTIVE_SHARDS_DEFAULT_DEPRECATION_MESSAGE)));
         assertOK(client().performRequest(closeRequest));
     }