Update modern-controls-radio-group.md

Author: fafuxa-ms

powerapps-docs/maker/canvas-apps/controls/modern-controls/modern-controls-radio-group.md

@@ -19,9 +19,7 @@ contributors:
   - noazarur-microsoft
 
 ---
-# Radio group control in Power Apps (preview)
-
-[This article is pre-release document and is subject to change.]
+# Radio group control in Power Apps
 
 An input control that shows multiple options, of which users can select only one at a time.