Fix incorrect use of lambda in bool accessor

Author: andrewlock

tracer/src/Datadog.Trace/Configuration/ConfigurationSources/Telemetry/ConfigurationBuilder.cs

@@ -216,7 +216,7 @@ public T GetAs<T>(Func<DefaultResult<T>> getDefaultValue, Func<T, bool>? validat
         // ****************
         public bool? AsBool() => AsBool(defaultValue: null, validator: null, converter: null);
 
-        public bool AsBool(bool defaultValue) => AsBool(() => defaultValue, validator: null).Value;
+        public bool AsBool(bool defaultValue) => AsBool(defaultValue, validator: null);
 
         public bool? AsBool(Func<bool, bool> validator) => AsBool(defaultValue: null, validator, converter: null);