8266459: Implement JEP 411: Deprecate the Security Manager for Removal

Co-authored-by: Sean Mullan <mullan@openjdk.org>
Co-authored-by: Lance Andersen <lancea@openjdk.org>
Co-authored-by: Weijun Wang <weijun@openjdk.org>
Reviewed-by: erikj, darcy, chegar, naoto, joehw, alanb, mchung, kcr, prr, lancea

src/java.base/share/classes/java/util/Locale.java

@@ -1103,6 +1103,7 @@ public final class Locale implements Cloneable, Serializable {
         if (newLocale == null)
             throw new NullPointerException("Can't set default locale to NULL");
 
+        @SuppressWarnings("removal")
         SecurityManager sm = System.getSecurityManager();
         if (sm != null) sm.checkPermission(new PropertyPermission
                         ("user.language", "write"));