chore: remove powershell script

dl_sdl2.ps1

@@ -1,36 +0,0 @@
-$SDL2Version = "2.30.0"
-$ArchiveFile = ".\SDL2-devel-mingw.zip"
-$Json = @"
-{
-	"x86_64-windows-gnu": {
-		"include": ".build_config\\SDL2\\include",
-		"libs": ".build_config\\SDL2\\lib",
-		"bin": ".build_config\\SDL2\\bin"
-	}
-}	
-"@
-
-New-Item -Force -ItemType Directory -Path .\.build_config
-Set-Location -Path .build_config -PassThru
-
-if (!(Test-Path -PathType Leaf $ArchiveFile)) {
-	Invoke-WebRequest "https://github.com/libsdl-org/SDL/releases/download/release-$SDL2Version/SDL2-devel-$SDL2Version-mingw.zip" -OutFile $ArchiveFile
-}
-
-Expand-Archive $ArchiveFile
-
-if (Test-Path -PathType Container .\SDL2) {
-	Remove-Item -Recurse .\SDL2
-}
-
-New-Item -Force -ItemType Directory -Path .\SDL2 
-Get-ChildItem -Path ".\SDL2-devel-mingw\SDL2-$SDL2Version\x86_64-w64-mingw32" | Move-Item -Destination .\SDL2
-
-# #include <SDL.h>
-Move-Item -Force -Path .\SDL2\include\SDL2\* -Destination .\SDL2\include
-Remove-Item -Force .\SDL2\include\SDL2
-
-New-Item -Force .\sdl.json -Value $Json
-
-Remove-Item -Recurse .\SDL2-devel-mingw
-Set-Location -Path .. -PassThru