misc: Remove dependency on System.Drawing.Common (#4082)

We only used it in one spot for DPI scaling factor.

This implements the same behaviour using gdiplus.

This remove 700KB of dependency to download and around 170KB unpacked.

Ryujinx.Common/System/ForceDpiAware.cs

@@ -1,6 +1,5 @@
 using Ryujinx.Common.Logging;
 using System;
-using System.Drawing;
 using System.Globalization;
 using System.Runtime.InteropServices;
 
@@ -51,7 +50,7 @@ namespace Ryujinx.Common.System
             {
                 if (OperatingSystem.IsWindows())
                 {
-                    userDpiScale = Graphics.FromHwnd(IntPtr.Zero).DpiX;
+                    userDpiScale = GdiPlusHelper.GetDpiX(IntPtr.Zero);
                 }
                 else if (OperatingSystem.IsLinux())
                 {