Remove checks for .NET and PowerShell

build.ps1

@@ -216,23 +216,6 @@ Section
   SetOutPath `$INSTDIR
   LogSet on
 
-  ReadRegStr `$R0 HKLM "SOFTWARE\Microsoft\PowerShell\3\PowerShellEngine" "PowerShellVersion"
-  DetailPrint "Detected PowerShell version: `$R0"
-  `${VersionCompare} "5.1.0.0" `$R0 `$R1
-  `${If} `$R1 < 2
-    Abort "Windows PowerShell 5.1 is required for this installation. Please install WMF 5.1 and re-run setup."
-  `${EndIf}
-  ClearErrors
-
-  ; https://docs.microsoft.com/en-us/dotnet/framework/migration-guide/how-to-determine-which-versions-are-installed
-  ; Check for .NET Framework 4.6.2, required for Visual Studio 2019 Build Tools
-  ReadRegDWORD `$R0 HKLM "SOFTWARE\Microsoft\NET Framework Setup\NDP\v4\Full" "Release"
-  DetailPrint "Detected .NET Framework 4 release: `$R0"
-  `${If} `$R0 < 394802
-    Abort ".NET Framework 4.6.2 or later is required for this installation. Please install the latest .NET Framework 4.x and re-run setup."
-  `${EndIf}
-  ClearErrors
-
   InitPluginsDir
   File /oname=`$TEMP\RefreshEnv.cmd "packages\pico-setup-windows\RefreshEnv.cmd"