RFR(XS) : 8190890 : remove hotspot_tier1_{compiler,gc}_closed groups

[Igor Ignatyev]

http://cr.openjdk.java.net/~iignatyev//8190890/webrev.00/index.html
> 9 lines changed: 0 ins; 9 del;

Hi all,

could you please review this tiny patch which removes unneeded jtreg test groups?

webrev: http://cr.openjdk.java.net/~iignatyev//8190890/webrev.00/index.html
JBS: https://bugs.openjdk.java.net/browse/JDK-8190890

Thanks,
-- Igor