Revert "Attempt to fix osx-x64 builds by pinning xcode version"

This reverts commit 56582cc.

Author: dihm

.github/workflows/release.yml

@@ -123,12 +123,6 @@ jobs:
           architecture: ${{ matrix.arch }}
           miniconda-version: "latest"
 
-      - name: Configure xcode
-        if: matrix.os == 'macos-13'
-        uses: maxim-lobanov/setup-xcode@v1
-        with:
-          xcode-version: 14.3
-
       - name: Conda package (Unix)
         if: (matrix.conda && runner.os != 'Windows')
         shell: bash -l {0}