Refactor: tools: Drop validate_or_force_cb() from crm_resource

This finishes command_cb(). This particular case is larger than the
others, but it's small enough to insert into command_cb() for the sake
of avoiding having just one odd callback function. Doesn't seem worth
adding a helper either.

Signed-off-by: Reid Wahl <nrwahl@protonmail.com>