Remove chronometer2 script

[yubiuser]

• What does this PR aim to accomplish?:

The chronometer2 script was made 5 years ago as a transitional script from chronometer to PADD.
It has no other functional output than to announce PADD
This PR removes it.

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2. I have commented my proposed changes within the code and I have tested my changes.
3. I am willing to help maintain this change if there are issues with it later.
4. It is compatible with the EUPL 1.2 license
5. I have squashed any insignificant commits. (git rebase)

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