Remove unused structures

Author: Lamparter

src/Files.App/Helpers/Win32/Win32PInvoke.Structs.cs

@@ -139,12 +139,6 @@ public sealed class WIN32_FIND_STREAM_DATA
 			public string cStreamName;
 		}
 
-		[StructLayout(LayoutKind.Sequential)]
-		public struct TOKEN_USER
-		{
-			public SID_AND_ATTRIBUTES User;
-		}
-
 		[StructLayout(LayoutKind.Sequential)]
 		public struct SID_AND_ATTRIBUTES
 		{
@@ -153,13 +147,6 @@ public struct SID_AND_ATTRIBUTES
 			public uint Attributes;
 		}
 
-		[StructLayout(LayoutKind.Sequential)]
-		public struct CRYPTOAPI_BLOB
-		{
-			public uint cbData;
-			public IntPtr pbData;
-		}
-
 		[StructLayout(LayoutKind.Sequential)]
 		public struct SYSTEMTIME
 		{
@@ -211,16 +198,5 @@ public struct WIN32_FIND_DATA
 			[MarshalAs(UnmanagedType.ByValTStr, SizeConst = 14)]
 			public string cAlternateFileName;
 		}
-
-		[StructLayout(LayoutKind.Sequential)]
-		public struct MSG
-		{
-			public IntPtr hwnd;
-			public uint message;
-			public IntPtr wParam;
-			public IntPtr lParam;
-			public uint time;
-			public System.Drawing.Point pt;
-		}
 	}
 }