[Merge] ~codyshepherd/livecd-rootfs/+git/livecd-rootfs:buildd/hide-grub-menu-bb into livecd-rootfs:ubuntu/bionic

[Thomas Bechtold]

Review: Needs Fixing

Can you drop commit 97894e6 ? It's adding lxd-agent-loader (which is not available in bionic) and in commit bb8d18d lxd-agent-loader is removed again.
for my understanding - how would you install lxd-agent-loader on bionic? Is there a backport or so? 

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https://code.launchpad.net/~codyshepherd/livecd-rootfs/+git/livecd-rootfs/+merge/398899
Your team Ubuntu Core Development Team is requested to review the proposed merge of ~codyshepherd/livecd-rootfs/+git/livecd-rootfs:buildd/hide-grub-menu-bb into livecd-rootfs:ubuntu/bionic.