Unable to delete partition
Hi!
A while back I created a new partition (Partition 2) on my Mac for troubleshooting reasons. The apps in question are running trouble free on Partition 2, so I would like to delete the Macintosh HD partition and all of its data, but the delete button (-) is grey out, as in the screenshots.
Is there a way I can remove it?
Thanks.
MacBook Pro 15″, macOS 10.15