cibuildwheel does the matrix, so remove it

Should have noticed that earlier.

.github/workflows/osx.yml

@@ -5,31 +5,12 @@ on: [push]
 jobs:
   build_osx:
     runs-on: macos-latest
-    strategy:
-      max-parallel: 5
-      matrix:
-        python-version: [3.8, 3.9, "3.10", "3.11"]
-        include:
-          - python-version: 3.8
-            py-short: 38
-            py-short2: 38
-          - python-version: 3.9
-            py-short: 39
-            py-short2: 39
-          - python-version: "3.10"
-            py-short: 310
-            py-short2: 310
-          - python-version: "3.11"
-            py-short: 311
-            py-short2: 311
-
     steps:
     - uses: actions/checkout@v3
     - name: Set up python
       uses: actions/setup-python@v4
       with:
-        python-version: ${{ matrix.python-version }}
-        architecture: x64
+        python-version: '3.x'
     - name: Download and build MeCab
       shell: bash
       run: |
@@ -39,12 +20,6 @@ jobs:
       with: 
         name: osx-wheels
         path: dist
-    - name: Check wheels
-      shell: bash
-      run: |
-        ls -la dist
-        VERSION=$(python setup.py --version)
-        pip install dist/mecab_python3-${VERSION}-cp${{ matrix.py-short }}-cp${{ matrix.py-short2 }}-macosx*.whl
     - name: Publish to PyPI if tagged
       if: startsWith(github.ref, 'refs/tags')
       env: