Revert "ci: try alternate way of requesting 8.1 sdk"

This reverts commit d5c2575360.

.github/workflows/cmake.yml

@@ -26,8 +26,6 @@ jobs:
     - name: Setup MSVC environment
       if: runner.os == 'Windows' 
       uses: ilammy/msvc-dev-cmd@v1
-      with:
-        sdk: 8.1 # maintain Windows 8.1 support
 
     - name: Linux Build
       if: runner.os == 'Linux'

appveyor.yml

@@ -9,7 +9,6 @@ install:
 - ps: 7z x embree64.zip -oc:\
 - ps: Invoke-WebRequest 'https://github.com/oneapi-src/oneTBB/releases/download/v2020.2/tbb-2020.2-win.zip' -OutFile 'tbb.zip'
 - ps: 7z x tbb.zip -oc:\
-- cmd: call "C:\Program Files\Microsoft Visual Studio\2022\Community\VC\Auxiliary\Build\vcvars64.bat" x64 8.1
 build_script:
 - cmd: powershell .\build-appveyor.ps1
 artifacts:

build-appveyor.ps1

@@ -18,7 +18,7 @@ mkdir cmakebuild
 
 cd cmakebuild
 
-cmake .. -T v143 -Dembree_DIR="C:\embree-3.12.1.x64.vc14.windows" -DTBB_DIR="C:\tbb\cmake" -DCMAKE_GENERATOR_PLATFORM=x64 -DENABLE_LIGHTPREVIEW=NO -DQt5Widgets_DIR="C:\Qt\5.8\msvc2013_64\lib\cmake\Qt5Widgets"
+cmake .. -T v143 -Dembree_DIR="C:\embree-3.12.1.x64.vc14.windows" -DTBB_DIR="C:\tbb\cmake" -DCMAKE_GENERATOR_PLATFORM=x64 -DCMAKE_SYSTEM_VERSION="8.1" -DENABLE_LIGHTPREVIEW=NO -DQt5Widgets_DIR="C:\Qt\5.8\msvc2013_64\lib\cmake\Qt5Widgets"
 
 $cmakePlatform = "x64"
 

build-windows.ps1

@@ -20,7 +20,7 @@ choco install ninja
 mkdir build-windows
 cd build-windows
 
-cmake .. -GNinja -Dembree_DIR="C:\embree-3.12.1.x64.vc14.windows" -DTBB_DIR="C:\tbb\cmake" -DCMAKE_BUILD_TYPE=Release
+cmake .. -GNinja -Dembree_DIR="C:\embree-3.12.1.x64.vc14.windows" -DTBB_DIR="C:\tbb\cmake" -DCMAKE_BUILD_TYPE=Release -DCMAKE_SYSTEM_VERSION="8.1"
 
 ninja
 if ( $? -eq $false ) {