Remove obsolete Exception constructor. (#2090)

Author: brianrob

src/PerfView.TestUtilities/ThrowingTraceListener.cs

@@ -95,10 +95,6 @@ public class DebugAssertFailureException : Exception
             public DebugAssertFailureException() { }
             public DebugAssertFailureException(string message) : base(message) { }
             public DebugAssertFailureException(string message, Exception inner) : base(message, inner) { }
-            protected DebugAssertFailureException(
-              System.Runtime.Serialization.SerializationInfo info,
-              System.Runtime.Serialization.StreamingContext context) : base(info, context)
-            { }
         }
     }
 }