Unify casing in Batch files, remove VS 2017 installation.

Author: Blackhex

windows/internal/check_deps.bat

@@ -16,18 +16,14 @@ IF "%BUILD_VISION%" == "" (
     )
 )
 
-IF NOT EXIST "%ProgramFiles(x86)%\Microsoft Visual Studio\Installer\vswhere.exe" (
+if not exist "%ProgramFiles(x86)%\Microsoft Visual Studio\Installer\vswhere.exe" (
     echo Visual Studio %VC_YEAR% C++ BuildTools is required to compile PyTorch on Windows
     exit /b 1
 )
 
 set VC_VERSION_LOWER=17
 set VC_VERSION_UPPER=18
-IF "%VC_YEAR%" == "2017" (
-    set VC_VERSION_LOWER=15
-    set VC_VERSION_UPPER=16
-)
-IF "%VC_YEAR%" == "2019" (
+if "%VC_YEAR%" == "2019" (
     set VC_VERSION_LOWER=16
     set VC_VERSION_UPPER=17
 )

windows/internal/cuda_install.bat

@@ -137,9 +137,6 @@ if not exist "C:\Program Files\NVIDIA GPU Computing Toolkit\CUDA\v%CUDA_VERSION_
     popd
 
     echo Installing VS integration...
-    if "%VC_YEAR%" == "2017" (
-        xcopy /Y "%SRC_DIR%\temp_build\cuda\CUDAVisualStudioIntegration\extras\visual_studio_integration\MSBuildExtensions\*.*" "C:\Program Files (x86)\Microsoft Visual Studio\2017\BuildTools\Common7\IDE\VC\VCTargets\BuildCustomizations"
-    )
     if "%VC_YEAR%" == "2019" (
         xcopy /Y "%SRC_DIR%\temp_build\cuda\CUDAVisualStudioIntegration\extras\visual_studio_integration\MSBuildExtensions\*.*" "C:\Program Files (x86)\Microsoft Visual Studio\2019\BuildTools\MSBuild\Microsoft\VC\v160\BuildCustomizations"
     )

windows/internal/env_fix.bat

@@ -5,18 +5,14 @@
 
 setlocal
 
-IF NOT EXIST "%ProgramFiles(x86)%\Microsoft Visual Studio\Installer\vswhere.exe" (
+if not exist "%ProgramFiles(x86)%\Microsoft Visual Studio\Installer\vswhere.exe" (
     echo Visual Studio %VC_YEAR% C++ BuildTools is required to compile PyTorch on Windows
     exit /b 1
 )
 
 set VC_VERSION_LOWER=17
 set VC_VERSION_UPPER=18
-IF "%VC_YEAR%" == "2017" (
-    set VC_VERSION_LOWER=15
-    set VC_VERSION_UPPER=16
-)
-IF "%VC_YEAR%" == "2019" (
+if "%VC_YEAR%" == "2019" (
     set VC_VERSION_LOWER=16
     set VC_VERSION_UPPER=17
 )
@@ -31,7 +27,7 @@ for /f "usebackq tokens=*" %%i in (`"%ProgramFiles(x86)%\Microsoft Visual Studio
 
 :vswhere
 
-IF "%VS15VCVARSALL%"=="" (
+if "%VS15VCVARSALL%"=="" (
     echo Visual Studio %VC_YEAR% C++ BuildTools is required to compile PyTorch on Windows
     exit /b 1
 )

windows/internal/smoke_test.bat

@@ -147,7 +147,6 @@ goto end
 :libtorch
 echo "install and test libtorch"
 
-if "%VC_YEAR%" == "2017" powershell internal\vs2017_install.ps1
 if "%VC_YEAR%" == "2019" powershell internal\vs2019_install.ps1
 if "%VC_YEAR%" == "2022" powershell internal\vs2022_install.ps1
 
@@ -160,10 +159,6 @@ pushd tmp\libtorch
 
 set VC_VERSION_LOWER=17
 set VC_VERSION_UPPER=18
-IF "%VC_YEAR%" == "2017" (
-    set VC_VERSION_LOWER=15
-    set VC_VERSION_UPPER=16
-)
 IF "%VC_YEAR%" == "2019" (
     set VC_VERSION_LOWER=16
     set VC_VERSION_UPPER=17

windows/internal/vc_install_helper.bat

@@ -1,14 +1,9 @@
-if "%VC_YEAR%" == "2017" powershell windows/internal/vs2017_install.ps1
 if "%VC_YEAR%" == "2019" powershell windows/internal/vs2019_install.ps1
 if "%VC_YEAR%" == "2022" powershell windows/internal/vs2022_install.ps1
 
 set VC_VERSION_LOWER=17
 set VC_VERSION_UPPER=18
-IF "%VC_YEAR%" == "2017" (
-    set VC_VERSION_LOWER=15
-    set VC_VERSION_UPPER=16
-)
-IF "%VC_YEAR%" == "2019" (
+if "%VC_YEAR%" == "2019" (
     set VC_VERSION_LOWER=16
     set VC_VERSION_UPPER=17
 )