RFR (XS): Obsolete support for commercial features

[Mikael Vidstedt]

Please review the following change which obsoletes/removes the support for commercial features - both the concept of commercial VM flags, and also some other references to the concept of commercial features.

Bug: https://bugs.openjdk.java.net/browse/JDK-8202331
Webrev: http://cr.openjdk.java.net/~mikael/webrevs/8202331/webrev.00/open/webrev/ <http://cr.openjdk.java.net/~mikael/webrevs/8202331/webrev.00/open/webrev/>

Cheers,
Mikael