remove deprecated-in-.net8 exception calls

also deprecate some unused exception classes

QuickFIXn/DataDictionary/DictionaryParseException.cs

@@ -1,7 +1,4 @@
 using System;
-using System.Collections.Generic;
-using System.Linq;
-using System.Text;
 
 namespace QuickFix
 {
@@ -12,9 +9,5 @@ public DictionaryParseException(string message)
             : base(message) { }
         public DictionaryParseException(string message, System.Exception inner)
             : base(message, inner) { }
-        protected DictionaryParseException(
-            System.Runtime.Serialization.SerializationInfo info,
-            System.Runtime.Serialization.StreamingContext context)
-            : base(info, context) { }
     }
 }

QuickFIXn/DataDictionary/InvalidMessageTypeException.cs

@@ -1,20 +1,19 @@
 using System;
-using System.Collections.Generic;
-using System.Linq;
-using System.Text;
 
 namespace QuickFix
 {
+    [Obsolete("This class will be removed in a future release (because it's unused)")]
     public class InvalidMessageTypeException : ApplicationException
     {
+        [Obsolete("This class will be removed in a future release (because it's unused)")]
         public InvalidMessageTypeException() { }
+
+        [Obsolete("This class will be removed in a future release (because it's unused)")]
         public InvalidMessageTypeException(string message)
             : base(message) { }
+
+        [Obsolete("This class will be removed in a future release (because it's unused)")]
         public InvalidMessageTypeException(string message, System.Exception inner)
             : base(message, inner) { }
-        protected InvalidMessageTypeException(
-            System.Runtime.Serialization.SerializationInfo info,
-            System.Runtime.Serialization.StreamingContext context)
-            : base(info, context) { }
     }
 }

QuickFIXn/DataDictionary/MissingRequiredFieldException.cs

@@ -7,18 +7,22 @@
 
 namespace QuickFix
 {
+    [Obsolete("This class will be removed in a future release (because it's unused)")]
     public sealed class MissingRequiredFieldException : ApplicationException
     {
+        [Obsolete("This class will be removed in a future release (because it's unused)")]
         public MissingRequiredFieldException() { }
+
+        [Obsolete("This class will be removed in a future release (because it's unused)")]
         public MissingRequiredFieldException(int field)
             : base("Missing required field: " + field.ToString()) { }
+
+        [Obsolete("This class will be removed in a future release (because it's unused)")]
         public MissingRequiredFieldException(string message)
             : base(message) { }
+
+        [Obsolete("This class will be removed in a future release (because it's unused)")]
         public MissingRequiredFieldException(string message, System.Exception inner)
             : base(message, inner) { }
-        protected MissingRequiredFieldException(
-            System.Runtime.Serialization.SerializationInfo info,
-            System.Runtime.Serialization.StreamingContext context)
-            : base(info, context) { }
     }
 }

QuickFIXn/Exceptions.cs

@@ -1,5 +1,4 @@
-
-using System;
+using System;
 
 namespace QuickFix
 {
@@ -16,10 +15,6 @@ public QuickFIXException(string msg)
         public QuickFIXException(string msg, System.Exception innerException)
             : base(msg, innerException)
         { }
-
-        public QuickFIXException(System.Runtime.Serialization.SerializationInfo info, System.Runtime.Serialization.StreamingContext context)
-            : base(info, context)
-        { }
     }
 
     /// <summary>
@@ -109,10 +104,6 @@ public InvalidMessage(string msg)
         public InvalidMessage(string msg, System.Exception innerException)
             : base("Invalid message: " + msg, innerException)
         { }
-
-        public InvalidMessage(System.Runtime.Serialization.SerializationInfo info, System.Runtime.Serialization.StreamingContext context)
-            : base(info, context)
-        { }
     }
 
     /// <summary>

QuickFIXn/Message/FieldNotFoundException.cs

@@ -24,11 +24,5 @@ public FieldNotFoundException(string message)
         public FieldNotFoundException(string message, System.Exception inner)
             : base(message, inner)
         { Field = -1; }
-
-        protected FieldNotFoundException(
-            System.Runtime.Serialization.SerializationInfo info,
-            System.Runtime.Serialization.StreamingContext context)
-            : base(info, context)
-        { }
     }
 }