remove unneeded/obsolete gk_mainargs from *cd-stage2*.spec

There is no reason for the livecd initramfs to need to be able to open
mdraid/dmraid/lvm arrays, so we can remove this support from the
genkernel call.  The livecds will still have all the tools needed to
create/maintain/use these kinds of volumes later.

Modern genkernel also autodetects makeopts so we do not need to set that
explicitly.

releases/weekly/specs/x86/hardened/admincd-stage2.spec

@@ -10,7 +10,6 @@ portage_confdir: @REPO_DIR@/releases/weekly/portage/isos
 livecd/bootargs: dokeymap
 livecd/cdtar: /usr/share/catalyst/livecd/cdtar/isolinux-elilo-memtest86+-cdtar.tar.bz2
 livecd/fstype: squashfs
-livecd/gk_mainargs: --lvm --dmraid --mdadm --makeopts=-j8
 livecd/iso: admincd-x86-latest.iso
 livecd/type: gentoo-release-minimal
 livecd/volid: Gentoo x86 AdminCD latest

releases/weekly/specs/x86/hardened/installcd-stage2-minimal.spec

@@ -9,7 +9,6 @@ source_subpath: hardened/livecd-stage1-x86-hardened-latest
 livecd/bootargs: dokeymap
 livecd/cdtar: /usr/share/catalyst/livecd/cdtar/isolinux-elilo-memtest86+-cdtar.tar.bz2
 livecd/fstype: squashfs
-livecd/gk_mainargs: --lvm --dmraid --mdadm --makeopts=-j8
 livecd/iso: install-x86-minimal-latest.iso
 livecd/type: gentoo-release-minimal
 livecd/volid: Gentoo x86 latest