Convert `Bit` to a `readonly record struct`

src/BizHawk.Common/Bit.cs

@@ -3,15 +3,8 @@ using System.Diagnostics;
 namespace BizHawk.Common
 {
 	// I think this is a little faster with uint than with byte
-	public readonly struct Bit
+	public readonly record struct Bit(uint _val)
 	{
-		private readonly uint _val;
-
-		public Bit(uint val)
-		{
-			_val = val;
-		}
-
 		public static implicit operator Bit(int rhs)
 		{
 			Debug.Assert((rhs & ~1) is 0, "higher bits can't be used");
@@ -37,25 +30,5 @@ namespace BizHawk.Common
 		{
 			return _val.ToString();
 		}
-
-		public static bool operator ==(Bit lhs, Bit rhs)
-		{
-			return lhs._val == rhs._val;
-		}
-
-		public static bool operator !=(Bit lhs, Bit rhs)
-		{
-			return lhs._val != rhs._val;
-		}
-
-		public override int GetHashCode()
-		{
-			return _val.GetHashCode();
-		}
-
-		public override bool Equals(object? obj)
-		{
-			return obj is Bit b && this == b;
-		}
 	}
 }