Revert "add script of upgrading pip, setuptools and wheel"

This reverts commit fa7a0ca.

Author: s-kai273

.github/workflows/pr-check.yml

@@ -161,9 +161,6 @@ jobs:
         with:
           python-version: ${{ matrix.python }}
 
-      - name: Install pip tools with setuptools pinned
-        run: python -m pip install pip setuptools==69.5.1 wheel
-
       - name: Install specific pytest version
         if: matrix.pytest-version == 'pytest@pre-release'
         run: |