revert useless changes

Author: kalebphipps

.github/workflows/test-pypi.yml

@@ -104,13 +104,7 @@ jobs:
         }
     - name: Checkout repository (for tests)
       uses: actions/checkout@v3
-    - name: Remove source code to prevent shadowing
-      if: runner.os == 'Linux' || runner.os == 'macOS'
-      run: rm -rf paint
-    - name: Remove source code to prevent shadowing (Windows)
-      if: runner.os == 'Windows'
-      run: Remove-Item -Recurse -Force paint
     - name: Run tests with coverage
       run: |
         python --version
-        python -m pytest
+        pytest --cov=paint