Python: Remove code coverage def in pyproject.toml which doesn't allo…

…w one to debug unit tests (microsoft#4519)

### Motivation and Context

Fixes microsoft#4515.

After adding some test code coverage config to the pyproject.toml, one
isn't able to debug unit tests. Removing this config allows one to debug
the unit tests again.

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### Description

The code coverage config is still working for other tasks, so this
doesn't remove it completely.

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These notes will help understanding how your code works. Thanks! -->

### Contribution Checklist

<!-- Before submitting this PR, please make sure: -->

- [X] The code builds clean without any errors or warnings
- [X] The PR follows the [SK Contribution
Guidelines](https://github.com/microsoft/semantic-kernel/blob/main/CONTRIBUTING.md)
and the [pre-submission formatting
script](https://github.com/microsoft/semantic-kernel/blob/main/CONTRIBUTING.md#development-scripts)
raises no violations
- [X] All unit tests pass, and I have added new tests where possible
- [X] I didn't break anyone 😄

Co-authored-by: Evan Mattson <evan.mattson@microsoft.com>

python/pyproject.toml

@@ -72,12 +72,6 @@ azure-identity = "^1.13.0"
 usearch = "1.1.1"
 pyarrow = ">=12.0.1,<15.0.0"
 
-[tool.pytest.ini_options]
-addopts = "--cov=semantic_kernel --cov-report term-missing"
-testpaths = [
-    "tests"
-]
-
 [tool.isort]
 profile = "ruff"