The ticket does not have to be "removed from the MagicBand.
(There are no tickets "on" ANY MagicBand, anyway.)
Nothing is ever "put onto" or "taken off of" any MagicBand.
**
Regardless, if he does not go to any of the parks, his ticket will remain new and unused.
If you want the ticket put onto a flat plastic ticket, that can be done at any ticket booth or Guest Relations.
However, that ticket ("his" ticket) will remain usable on both that flat ticket -AND- his MagicBand.
If that ticket is never used to enter a park, it can be saved and used by anyone in the future.
And... even if that ticket is never used to enter a park, any FP+ reservations made
with it can be accessed by anyone holding that ticket or his MB.
--------------------------------------
** Just to keep things as clear as possible-
There is no reservation info, or ticket info, or credit card info,
or FP+ info "put onto" a MagicBand.
A MagicBand just contains (and weakly "transmits") a unique serial number that is used to access the information that is stored in your MyDisneyExperience computer file.
The MagicBand works like the combination to a locked safe, or a key to a locked door.
The MB, itself, is not the file of info or the container of the info.
The MB just
unlocks the file of info, allowing it to be accessed from your
MDE account when needed.