Remove clang if not using it

Author: dwai-wai

.github/workflows/build.yml

@@ -12,10 +12,6 @@ jobs:
     runs-on: ubuntu-24.04
     steps:
       - uses: actions/checkout@v4
-      - uses: egor-tensin/setup-clang@v1
-        with:
-          version: latest
-          platform: x64
       - uses: ConorMacBride/install-package@v1
         with:
           apt: gcc-11 g++-11 libreadline-dev libyaml-cpp-dev