Fix SA1516 (ElementsMustBeSeparatedByBlankLine) violation

Usually when processing macros, the line where the macro is present,
is processed into a blank line. But in this case, it remove the entire line.

Microsoft.Toolkit.Uwp.Notifications/Adaptive/AdaptiveProgressBarValue.cs

@@ -32,6 +32,7 @@ public sealed class AdaptiveProgressBarValue
         private AdaptiveProgressBarValue()
         {
         }
+
 #if !WINRT
         /// <summary>
         /// Initializes a new instance of the <see cref="AdaptiveProgressBarValue"/> class.
@@ -43,6 +44,7 @@ public AdaptiveProgressBarValue(string bindingName)
             BindingName = bindingName;
         }
 #endif
+
         internal string ToXmlString()
         {
             if (IsIndeterminate)
@@ -102,6 +104,7 @@ public static AdaptiveProgressBarValue FromBinding(string bindingName)
                 BindingName = bindingName
             };
         }
+
 #if !WINRT
         /// <summary>
         /// Creates an <see cref="AdaptiveProgressBarValue"/> that has the raw double value.