The Cristie Recovered Grub boot entry can be removed if required. To do this a new initramfs will be created then grub.cfg requires rebuilding.
It is vitally important you know what you are doing, removing the wrong one or creating a new incorrect entry can cause the system to become unbootable or unstable. The responsibility is with the customer or agent performing these steps, not Cristie.
The Cristie Recovered entry is required and performs dissimilar hardware functions, once restored or replicated to a dissimilar hardware system (VM or Physical) first boot into the Cristie Recovered System.
Regenerate your initramfs, the initramfs file name and the version you need to specify will be different depending on the kernel version, below is just an example.
mkinitrd -f /boot/initramfs-3.10.0-1160.21.1.el7.x86_64.img 3.10.0-1160.21.1.el7.x86_64
And then rebuild the grub cfg, this will remove the Cristie entry as well.
grub2-mkconfig -o /etc/grub2.cfg
This is outside of Cristie’s responsibility, we provide the DHW initramfs in-case different drivers are needed on the target and this is common.