Fix for not working delete methode for timestamps

[eulus]

Hi Noah Ich habe eine Lösung für das nicht funktionieren des delete Befehls gefunden.

Nicht sehr elegant. Ich habe eine eigene Delete Methode geschrieben die Funktioniert bei mir.

Kannst du den Branch Testen ob es auch bei dir Funktioniert? Und erst dann Approven.

Gruss Till

[codecov[bot]]

Codecov Report

Attention: Patch coverage is 0% with 1 lines in your changes are missing coverage. Please review.

Project coverage is 22.03%. Comparing base (2d70eed) to head (85ce9f2). Report is 1 commits behind head on main.

Files	Patch %	Lines
.../pm4/compass/backend/service/TimestampService.java	0.00%	1 Missing :warning:

Additional details and impacted files

```diff @@ Coverage Diff @@ ## main #144 +/- ## ========================================= Coverage 22.03% 22.03% Complexity 252 252 ========================================= Files 101 101 Lines 2778 2778 Branches 450 450 ========================================= Hits 612 612 Misses 2014 2014 Partials 152 152 ``` | [Flag](https://app.codecov.io/gh/ZHAW-PM4-Compass/compass/pull/144/flags?src=pr&el=flags&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=ZHAW-PM4-Compass) | Coverage Δ | | |---|---|---| | [backend](https://app.codecov.io/gh/ZHAW-PM4-Compass/compass/pull/144/flags?src=pr&el=flag&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=ZHAW-PM4-Compass) | `62.53% <0.00%> (ø)` | | | [frontend](https://app.codecov.io/gh/ZHAW-PM4-Compass/compass/pull/144/flags?src=pr&el=flag&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=ZHAW-PM4-Compass) | `0.60% <ø> (ø)` | | Flags with carried forward coverage won't be shown. [Click here](https://docs.codecov.io/docs/carryforward-flags?utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=ZHAW-PM4-Compass#carryforward-flags-in-the-pull-request-comment) to find out more.

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