scd:piv: Remove debug code from a recent commit.
* scd/app-piv.c (ask_and_prepare_chv): here.
The test code from the last PIV change was accidently kept enabled.
- Fixes-commit: 2dd6b4b998dd6e156e2e75ede0f40fb768c69f40
- Signed-off-by: Werner Koch <wk@gnupg.org>