Delete a BTRFS bcache disk

[molestrangler]

Ok, I had BTRFS up and running just fine. Then I decided to add a cache SSD using

make-bcache -C /dev/sdg

but eventually worked out that this would not work as a caching disk needs to be added at the time of creating my BTRFS RAID10.

But how do I safely remove /dev/sdg?

I'm running Linux 6.2.11-2-pve #1 SMP PREEMPT_DYNAMIC PVE 6.2.11-2 (2023-05-10T09:13Z)