[GitHub] Stop using setup-windows action

Author: tstellar

.github/workflows/hlsl-test-all.yaml

@@ -52,11 +52,6 @@ jobs:
           repository: llvm/offload-golden-images
           ref: main
           path: golden-images
-      - name: Setup Windows
-        if: runner.os == 'Windows'
-        uses: llvm/actions/setup-windows@main
-        with:
-          arch: amd64
       - name: Build DXC
         run: |
             cd DXC

.github/workflows/release-binaries-setup-stage/action.yml

@@ -24,12 +24,6 @@ runs:
     - name: Install Ninja
       uses: llvm/actions/install-ninja@22e9f909d35b50bd1181709564bfe816eaeaae81 # main
 
-    - name: Setup Windows
-      if: startsWith(runner.os, 'Windows')
-      uses: llvm/actions/setup-windows@main
-      with:
-        arch: amd64
-
     - name: Set Build Prefix
       id: build-prefix
       shell: bash