Avoid Castle's default trace logging

src/Moq/Interception/CastleProxyFactory.cs

@@ -14,6 +14,7 @@
 using System.Text;
 #endif
 
+using Castle.Core.Logging;
 using Castle.DynamicProxy;
 
 using Moq.Internals;
@@ -34,6 +35,8 @@
         {
             this.generationOptions = new ProxyGenerationOptions { Hook = new IncludeObjectMethodsHook(), BaseTypeForInterfaceProxy = typeof(InterfaceProxy) };
             this.generator = new ProxyGenerator();
+            (this.generator.Logger as TraceLogger)?.Level = LoggerLevel.Warn;
+
             this.classGenerators = new ConcurrentDictionary<string, ProxyGenerator>();
         }
 
@@ -81,7 +84,7 @@
 
         public override bool IsMethodVisible(MethodInfo method, out string messageIfNotVisible)
         {
             return ProxyUtil.IsAccessible(method, out messageIfNotVisible);
         }
 
         public override bool IsTypeVisible(Type type)
@@ -152,7 +155,7 @@
 #endif
 
                 this.underlying.Proceed();
                 return this.underlying.ReturnValue;
             }
 
             public void DetachFromUnderlying()