Detach MacOS dependency due to xenium. See mpoeter/xenium#3

.github/workflows/pypi.yml

@@ -30,21 +30,11 @@ jobs:
     runs-on: ${{ matrix.os }}
     strategy:
       matrix:
-        os: [ubuntu-24.04, windows-2022, macos-15]
+        os: [ubuntu-24.04, windows-2022]
 
     steps:
       - uses: actions/checkout@v3
 
-      # To handle OpenMP issue in MacOS
-      - name: Install dependencies (macOS)
-        if: runner.os == 'macOS'
-        run: |
-          brew install llvm
-          echo 'export CC=/opt/homebrew/opt/llvm/bin/clang' >> $GITHUB_ENV
-          echo 'export CXX=/opt/homebrew/opt/llvm/bin/clang++' >> $GITHUB_ENV  
-          echo 'export LDFLAGS="-L/opt/homebrew/opt/llvm/lib -Wl,-rpath,/opt/homebrew/opt/llvm/lib"' >> $GITHUB_ENV
-          echo 'export CPPFLAGS="-I/opt/homebrew/opt/llvm/include"' >> $GITHUB_ENV
-          
       - name: Build test wheels (only PRs)
         if: github.event_name != 'release'
         uses: pypa/[email protected]