cvs-confirm-removals

cvs-confirm-removals is a variable defined in `pcvs-defs.el'.
Its value is

t

Documentation:
Ask for confirmation before removing files.
Non-nil means that PCL-CVS will ask confirmation before removing files
except for files whose content can readily be recovered from the repository.
A value of `list' means that the list of files to be deleted will be
displayed when asking for confirmation.

You can customize this variable.