Update ApiDefinition.cs comment

csharp/Facebook.Yoga/YogaNode.cs

@@ -541,7 +541,6 @@ namespace Facebook.Yoga
             return new YogaSize { width = MeasureOutput.GetWidth(output), height = MeasureOutput.GetHeight(output) };
         }
 
-#if !MONOMAC
         public string Print(YogaPrintOptions options =
             YogaPrintOptions.Layout|YogaPrintOptions.Style|YogaPrintOptions.Children)
         {
@@ -552,7 +551,6 @@ namespace Facebook.Yoga
             YogaLogger.Logger = orig;
             return sb.ToString();
         }
-#endif
 
         public IEnumerator<YogaNode> GetEnumerator()
         {

csharp/Facebook.Yoga/mac/ApiDefinition.cs

@@ -7,7 +7,8 @@ using CoreGraphics;
 
 namespace Facebook.Yoga.Mac
 {
-	// We're actually abusing the Xamarin.Mac binding project
-	// to bundle in the static lib for us. There is no objective-c
-	// lib to bind, but the build will fail without ApiDefinition.cs
+	// Xamarin.Mac binding projects allow you to include native libraries inside C# DLLs for easy consumption
+	// later. However, the binding project build files currently assume you are binding some objective-c API
+	// and that you need an ApiDefinition.cs for that. yoga is all C APIs, so just include this "blank" file so
+	// the dylib gets packaged
 }