[10] Review request for 8190228: Remove redundant modifiers in java.desktop module.

[Semyon Sadetsky]

Hello,

Please review fix for JDK10:

bug: https://bugs.openjdk.java.net/browse/JDK-8190228

webrev: http://cr.openjdk.java.net/~ssadetsky/8190228/webrev.00/

The fix cleanups Swing and AWT code to remove the redundant code like:

SomeClass *extends Object*

private *final* ...someMethod()

--Semyon