Can't delete partition on external drive

[Hitch22]

Hi
Having some issues when trying to remove a partition from my external drive. Says that the first volume of the disk can't be removed. I get the following output from diskutil list and diskutil cs list:

Want to delete david and keep Seagate. Any help appreciated.

 

[Crash0veride]

MacOS won't let you leave free space and it can't incorporate David into seagate because it comes before seagate in the partition order. Disk Utility only lets you expand partitions by changing the end point of the partition. (These statements are not true for apfs shared space partitions)