hg: jdk8u/jdk8u-dev/hotspot: 8217753: Enable HotSpot builds on 5.x Linux kernels

[gnu.andrew at redhat.com]

Changeset: 5af8ec63c21c
Author:    andrew
Date:      2019-03-15 17:22 +0000
URL:       http://hg.openjdk.java.net/jdk8u/jdk8u-dev/hotspot/rev/5af8ec63c21c

8217753: Enable HotSpot builds on 5.x Linux kernels
Summary: Remove Linux kernel version check as very unlikely a kernel older than 2.4 will be used.
Reviewed-by: erikj

! make/linux/Makefile