dont reinstall CUDA in CMake / Windows workflow

.github/scripts/setup-env.sh

@@ -52,6 +52,14 @@ fi
 
 echo '::endgroup::'
 
+if [[ "${OS_TYPE}" == windows && "${GPU_ARCH_TYPE}" == cuda ]]; then
+  echo '::group::Install VisualStudio CUDA extensions on Windows'
+  TARGET_DIR="/c/Program Files (x86)/Microsoft Visual Studio/2019/BuildTools/MSBuild/Microsoft/VC/v160/BuildCustomizations"
+  mkdir -p "${TARGET_DIR}"
+  cp -r "${CUDA_HOME}/MSBuildExtensions/"* "${TARGET_DIR}"
+  echo '::endgroup::'
+fi
+
 echo '::group::Install PyTorch'
 # TODO: Can we maybe have this as environment variable in the job template? For example, `IS_RELEASE`.
 if [[ (${GITHUB_EVENT_NAME} = 'pull_request' && (${GITHUB_BASE_REF} = 'release'*)) || (${GITHUB_REF} = 'refs/heads/release'*) ]]; then

.github/workflows/build-cmake.yml

@@ -76,15 +76,6 @@ jobs:
 
         source packaging/windows/internal/vc_install_helper.sh
 
-        # FIXME: Basically, we are reinstalling CUDA here. We only need this, because we need to copy some files that
-        #  can be extracted from the CUDA installer, but are not available on our Windows AMI.
-        #  See https://github.com/pytorch/test-infra/pull/4189
-        if [[ ${{ matrix.gpu-arch-type }} == cuda ]]; then
-          export CU_VERSION=cu$(echo ${{ matrix.gpu-arch-version }} | sed 's/\.//')
-          echo CU_VERSION="${CU_VERSION}"
-          packaging/windows/internal/cuda_install.bat
-        fi
-
         export PYTHON_VERSION=3.8
         export GPU_ARCH_TYPE=${{ matrix.gpu-arch-type }}
         export GPU_ARCH_VERSION=${{ matrix.gpu-arch-version }}