revert changes to batch file, since it runs as a PR check

src/debugpy/_vendored/pydevd/pydevd_attach_to_process/windows/compile_windows.bat

@@ -1,16 +1,16 @@
-:: This needs to be run from a Visual Studio Developer Command Prompt
-:: You must also have the "Desktop Development with C++" workload installed
+:: This script compiles the attach and inject DLLs for x86 and x64 architectures.
+:: It runs as part of the PR checks in the debugpy repo, AND the artifacts are uploaded to github,
+:: so you don't have to run it locally.
 
 setlocal
 @cd /d %~dp0
 
-@IF NOT EXIST "%VSINSTALLDIR%VC\Auxiliary\Build\vcvarsall.bat" (
-    echo "Please install Visual Studio 2017 or later with the 'Desktop Development with C++' workload"
-    exit /b 1
-)
-
-:: Build x86 binaries
-call "%VSINSTALLDIR%VC\Auxiliary\Build\vcvarsall.bat" x86 -vcvars_spectre_libs=spectre
+@set VSWHERE=%ProgramFiles(x86)%\Microsoft Visual Studio\Installer\vswhere.exe
+@echo Using vswhere at %VSWHERE%
+@for /f "usebackq tokens=*" %%i in (`"%VSWHERE%" -latest -products * -requires Microsoft.VisualStudio.Component.VC.Tools.x86.x64 -property installationPath`) do set VSDIR=%%i
+@echo Using Visual C++ at %VSDIR%
+
+call "%VSDIR%\VC\Auxiliary\Build\vcvarsall.bat" x86 -vcvars_spectre_libs=spectre
 
 cl -DUNICODE -D_UNICODE /EHsc /Zi /O1 /W3 /LD /MD /Qspectre attach.cpp /link /PROFILE /GUARD:CF /out:attach_x86.dll
 copy attach_x86.dll ..\attach_x86.dll /Y
@@ -20,12 +20,11 @@ cl -DUNICODE -D_UNICODE /EHsc /Zi /O1 /W3 /LD /MD /D BITS_32 /Qspectre run_code_
 copy run_code_on_dllmain_x86.dll ..\run_code_on_dllmain_x86.dll /Y
 copy run_code_on_dllmain_x86.pdb ..\run_code_on_dllmain_x86.pdb /Y
 
-cl /EHsc /Zi /O1 /W3 /Qspectre inject_dll.cpp /link /PROFILE /GUARD:CF /out:inject_dll_x86.exe
+cl /EHsc /Zi /O1 /W3 /Qspectre inject_dll.cpp /link /DEBUG /OPT:REF /OPT:ICF /GUARD:CF /out:inject_dll_x86.exe
 copy inject_dll_x86.exe ..\inject_dll_x86.exe /Y
 copy inject_dll_x86.pdb ..\inject_dll_x86.pdb /Y
 
-:: Build x64 binaries
-call "%VSINSTALLDIR%VC\Auxiliary\Build\vcvarsall.bat" x86_amd64 -vcvars_spectre_libs=spectre
+call "%VSDIR%\VC\Auxiliary\Build\vcvarsall.bat" x86_amd64 -vcvars_spectre_libs=spectre
 
 cl -DUNICODE -D_UNICODE /EHsc /Zi /O1 /W3 /LD /MD /Qspectre attach.cpp /link /PROFILE /GUARD:CF /out:attach_amd64.dll
 copy attach_amd64.dll ..\attach_amd64.dll /Y
@@ -35,7 +34,7 @@ cl -DUNICODE -D_UNICODE /EHsc /Zi /O1 /W3 /LD /MD /D BITS_64 /Qspectre run_code_
 copy run_code_on_dllmain_amd64.dll ..\run_code_on_dllmain_amd64.dll /Y
 copy run_code_on_dllmain_amd64.pdb ..\run_code_on_dllmain_amd64.pdb /Y
 
-cl /EHsc /Zi /O1 /W3 /Qspectre inject_dll.cpp /link /PROFILE /GUARD:CF /out:inject_dll_amd64.exe
+cl /EHsc /Zi /O1 /W3 /Qspectre inject_dll.cpp /link /DEBUG /OPT:REF /OPT:ICF /GUARD:CF /out:inject_dll_amd64.exe
 copy inject_dll_amd64.exe ..\inject_dll_amd64.exe /Y
 copy inject_dll_amd64.pdb ..\inject_dll_amd64.pdb /Y