7u14 Request for approval for CR 8006691 - Remove jvm_version_info.is_kernel_jvm field

[Zhengyu Gu]

This is a simple change to remove is_kernel_jvm field in 
jvm_version_info, as kernel VM has been deprecated.

Bug: http://bugs.sun.com/view_bug.do?bug_id=8006691
Webrev: http://cr.openjdk.java.net/~zgu/8006691/jdk8/webrev.00/
It has been reviewed by mchung

Thanks,

-Zhengyu