more fun on my laptop with no mdadm and gpt partitions:
% sudo apt purge gdisk
Reading package lists... Done
Building dependency tree
Reading state information... Done
The following packages will be REMOVED:
gdisk* gvfs* gvfs-daemons* gvfs-fuse* libblockdev-crypto2*
libblockdev-fs2* libblockdev-loop2*
libblockdev-mdraid2* libblockdev-part-err2* libblockdev-part2*
libblockdev-swap2* libblockdev-utils2*
libblockdev2* libbytesize1* libparted-fs-resize0* libvolume-key1*
mdadm* udftools* udisks2*
0 upgraded, 0 newly installed, 19 to remove and 0 not upgraded.
After this operation, 7.006 kB disk space will be freed.
Do you want to continue? [Y/n]