chore: remove unnecessary comment

Author: simonresch

.github/workflows/build-llvm.yaml

@@ -13,7 +13,6 @@ jobs:
     name: Build LLVM
     strategy:
       matrix:
-        # os: [ubuntu-20.04, macos-12, windows-2019]
         os: [ubuntu-20.04, macos-14]
     runs-on: ${{ matrix.os }}
     steps: