TST: Remove -OO testrun from CI (#901)

We needed it because we were manipulating a docstring programmatically.

As long as we don't rely on assert / docstrings being present, we don't need to test with -OO.

.github/workflows/github-ci.yaml

@@ -21,7 +21,7 @@ jobs:
  runs-on: ubuntu-latest
  strategy:
  matrix:
- python-version: ["3.6", "3.7", "3.10.1", "3.8", "3.9", "3.10"]
+ python-version: ["3.6", "3.7", "3.8", "3.9", "3.10"]
 
  steps:
  - name: Checkout Code
@@ -47,11 +47,6 @@ jobs:
  - name: Test with pytest
  run: |
  python -m coverage run --parallel-mode -m pytest tests -vv
- if: matrix.python-version != '3.10.1'
- - name: Test with pytest (OO flag)
- run: |
- python -OO -m coverage run --parallel-mode -m pytest tests -vv
- if: matrix.python-version == '3.10.1'
  - name: Test with mypy
  run : |
  mypy PyPDF2 --show-error-codes --disallow-untyped-defs --disallow-incomplete-defs