feat(Locales) #30387 : Remove hyphens from Feature Flag name (#30388)

### Proposed Changes
* Removing hyphens from Feature Flag name as they don't play well with
the env var naming convention.

dotCMS/src/main/java/com/dotmarketing/business/ajax/RoleAjax.java

@@ -98,7 +98,7 @@ public class RoleAjax {
 	private final UserWebAPI userWebAPI;
 
 	private static final Lazy<Boolean> HIDE_OLD_LANGUAGES_PORTLET =
-			Lazy.of(() -> Config.getBooleanProperty("FEATURE_FLAG_LOCALES_HIDE-OLD-LANGUAGES-PORTLET", true));
+			Lazy.of(() -> Config.getBooleanProperty("FEATURE_FLAG_LOCALES_HIDE_OLD_LANGUAGES_PORTLET", true));
 
     private static final ObjectMapper mapper = DotObjectMapperProvider.getInstance()
             .getDefaultObjectMapper();