remove tests from package distribution

[mjurbanski-reef]

Bug

After pip install bittensor site-packages include:

.venv/lib/python3.11/site-packages/bittensor/*
.venv/lib/python3.11/site-packages/tests/helpers/*
.venv/lib/python3.11/site-packages/tests/integration_tests/*
.venv/lib/python3.11/site-packages/tests/unit_tests/*

i.e. tests are packaged as top-level package and may very well conflict with other python libs that made the same mistake.

Description of the Change

• exclude tests from setuptools autodiscovery

Alternate Designs

None.
Although at some point deprecated setup.py should be dropped in favor of pdm or more modern packaging tooling, the same error could be done with it as well.

Possible Drawbacks

None I know of.
If someone wants tests, then they need test dependencies as well.

Verification Process

# cleaned previous builds; without this some stuff can still be included even after the fix
python setup.py clean --all
rm -rf build dist *.egg-info

python setup.py bdist_wheel
python setup.py sdist
# examined output if tests/ are still added to .whl and tar

# tested `pip install ./dist/*.whl` and same with sdist to check if installation still works and `btcli` launches

Release Notes

• Removed accidentally included tests package from Python dist package (i.e. PyPI package)