RFR: 8065555: remove incorrect locale data for inexistent language 'German (Greece)'

[Leo Jiang]

Hi,

Please review the change to remove the incorrect locale data.

Webrev:
http://cr.openjdk.java.net/~ljiang/8065555/webrev/

Bug:
https://bugs.openjdk.java.net/browse/JDK-8065555

As report, the de-GR is an inexistent locale, we should remove the locale data from JRE provider.

Thanks,
Leo