[dts] remove core mask test case

[Liu, Yong]

Huilong,
This is because of default LOG level changed, we can changed configuration file and then validate those cases.

From: Xu, HuilongX
Sent: Tuesday, June 14, 2016 9:22 AM
To: dts at dpdk.org; Liu, Yong
Cc: Xu, HuilongX
Subject: remove core mask test case

Hi all,
Dpdk eal init code update already, core init info not print in log.
Could we remove "all_cores_coremask, big_coremask, individual_coremask".

Thanks a  lot