hg: build-infra/jdk9: * Move feature handling to configure.

[magnus.ihse.bursie at oracle.com]

Changeset: 640d1fd99230
Author:    ihse
Date:      2016-02-09 14:51 +0100
URL:       http://hg.openjdk.java.net/build-infra/jdk9/rev/640d1fd99230

* Move feature handling to configure.
* Remove minimize-ram-usage feature (not needed anymore)

! common/autoconf/configure.ac
! common/autoconf/generated-configure.sh
! common/autoconf/hotspot.m4
! common/autoconf/spec.gmk.in