♻️ Use the runner default Xcode for wheels

Native SDK archives no longer require exact Xcode selection.

Assisted-by: GPT-6

Author: burgholzer

.github/workflows/reusable-python-packaging-wheel-cibuildwheel.yml

@@ -35,10 +35,6 @@ on:
         description: "Whether the MLIR SDK should retain assertions"
         default: true
         type: boolean
-      xcode-version:
-        description: "Exact Xcode version for macOS wheel builds; empty uses the runner default"
-        default: ""
-        type: string
       llvm-version:
         description: "The LLVM version to set up (formatted as 'major.minor.patch') or commit hash (minimum 7 characters, e.g., 'a832a52')"
         default: "21.1.8"
@@ -83,15 +79,6 @@ jobs:
           fetch-depth: 0
           persist-credentials: false
 
-      - name: Select Xcode
-        if: ${{ startsWith(inputs.runs-on, 'macos') && inputs.xcode-version != '' }}
-        env:
-          XCODE_VERSION: ${{ inputs.xcode-version }}
-        run: |
-          developer_dir="/Applications/Xcode_${XCODE_VERSION}.app/Contents/Developer"
-          test -d "$developer_dir"
-          echo "DEVELOPER_DIR=$developer_dir" >> "$GITHUB_ENV"
-
       - name: Set up Z3
         if: ${{ inputs.setup-z3 && !startsWith(inputs.runs-on, 'ubuntu') }}
         uses: cda-tum/setup-z3@0401375ea1e34d77ef35bbeb634f6203f3bcde60 # v1.7.3