Remove unused helpers Util.{Memcmp,Memset}

Author: YoshiRulz

src/BizHawk.Common/Util.cs

@@ -12,7 +12,7 @@
 
 namespace BizHawk.Common
 {
-	public static unsafe class Util
+	public static class Util
 	{
 		[Conditional("DEBUG")]
 		public static void BreakDebuggerIfAttached()
@@ -147,26 +147,6 @@ static int CharToNybble(char c)
 			return ms.ToArray();
 		}
 
-		public static int Memcmp(void* a, void* b, int len)
-		{
-			var ba = (byte*) a;
-			var bb = (byte*) b;
-			for (var i = 0; i != len; i++)
-			{
-				var _a = ba[i];
-				var _b = bb[i];
-				var c = _a - _b;
-				if (c != 0) return c;
-			}
-			return 0;
-		}
-
-		public static void Memset(void* ptr, int val, int len)
-		{
-			var bptr = (byte*) ptr;
-			for (var i = 0; i != len; i++) bptr[i] = (byte) val;
-		}
-
 		public static byte[]? ReadByteBuffer(this BinaryReader br, bool returnNull)
 		{
 			var len = br.ReadInt32();
@@ -308,7 +288,7 @@ static bool TryWaitForFileToVanish(string path)
 
 		/// <summary>creates span over <paramref name="length"/> octets starting at <paramref name="ptr"/></summary>
 		[MethodImpl(MethodImplOptions.AggressiveInlining)]
-		public static Span<byte> UnsafeSpanFromPointer(IntPtr ptr, int length)
+		public static unsafe Span<byte> UnsafeSpanFromPointer(IntPtr ptr, int length)
 		{
 			return new(pointer: ptr.ToPointer(), length: length);
 		}
@@ -319,7 +299,7 @@ public static Span<byte> UnsafeSpanFromPointer(IntPtr ptr, int length)
 		/// </summary>
 		/// <remarks>uses native endianness</remarks>
 		[MethodImpl(MethodImplOptions.AggressiveInlining)]
-		public static Span<T> UnsafeSpanFromPointer<T>(IntPtr ptr, int count)
+		public static unsafe Span<T> UnsafeSpanFromPointer<T>(IntPtr ptr, int count)
 			where T : unmanaged
 		{
 			return new(pointer: ptr.ToPointer(), length: count * sizeof(T));