Removal of a cylinder requires a renumbering of
cylinders in the core data structures (samples, etc.).
The renumbering was performed in the undo-action of
cylinder removal, but not during actual cylinder removal.
What a mess!
Add the missing call.
Attention: this makes the deletion of sensor-readings
on cylinder-deletion non-undoable!
Undo will have to be fixed in upcoming commits.
Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>