<AWT Dev> [11] JDK-8201598: Fix for 8181910: Support dark title bars on macOS broke the MacOS build

[shashidhara.veerabhadraiah at oracle.com]

Hi All, Please review a fix for the below bug:

Bug: https://bugs.openjdk.java.net/browse/JDK-8201598

Webrev: http://cr.openjdk.java.net/~sveerabhadra/8201598/webrev.00/

There are some of the constants(appkit constants) that are defined in 
10.10 is used in the fix for JDK-8181910 without any compiler specific 
flag(like __MAC_10_10) as they are not available below 10.10 and since 
there is no available machines with Mac 10.9 for testing purpose, I 
would like undo the changeset introduced under JDK-8181910 and fix the 
problem later for the problem of having dark title bars(JDK-8181910) for 
the mac windows under a separate bug.

Thanks and regards,

Shashi