[XPU] Remove unnecessary steps for Windows wheel validation (#7069)

Fixes: pytorch/pytorch#161791

Author: chuanqi129

.github/scripts/validate_binaries.sh

@@ -9,10 +9,6 @@ else
     export PYTHON_RUN="python3"
     if [[ ${TARGET_OS} == 'windows' ]]; then
         export PYTHON_RUN="python"
-        # Currently xpu env need a helper script to activate
-        if [[ ${MATRIX_GPU_ARCH_TYPE} == "xpu" ]]; then
-            export PYTHON_RUN="${SCRIPT_DIR}/xpu_env_helper.bat python"
-        fi
     fi
 
     if [[ ${TARGET_OS} == 'macos-arm64' ]]; then

.github/scripts/xpu_env_helper.bat

@@ -132,8 +132,5 @@ jobs:
         source /c/Jenkins/Miniconda3/etc/profile.d/conda.sh
         if [[ ${MATRIX_GPU_ARCH_TYPE} == "cuda" ]]; then
           ./.ci/pytorch/windows/internal/driver_update.bat
-        elif [[ ${MATRIX_GPU_ARCH_TYPE} == "xpu" ]]; then
-          export CUDA_VERSION=xpu
-          ./.ci/pytorch/windows/internal/xpu_install.bat
         fi
         source ../../test-infra/.github/scripts/validate_binaries.sh