Removed other use of stacktrace in netcore

Author: JakeGinnivan

src/TestStack.BDDfy/Scanners/ScenarioScanners/FluentScenarioScanner.cs

@@ -1,6 +1,4 @@
-using System;
-using System.Collections.Generic;
-using System.Diagnostics;
+using System.Collections.Generic;
 using System.Linq;
 using TestStack.BDDfy.Configuration;
 
@@ -38,26 +36,18 @@ private List<Step> CloneSteps(IEnumerable<Step> steps)
         private static string GetTitleFromMethodNameInStackTrace(object testObject)
         {
             // ReSharper disable once JoinDeclarationAndInitializer
-            StackTrace trace;
 #if STACKTRACE
-            trace = new StackTrace();
-#else
-            try
-            {
-                throw new Exception();
-            }
-            catch (Exception e)
-            {
-                trace = new StackTrace(e, false);
-            }
-#endif
+            var trace = new System.Diagnostics.StackTrace();
             var frames = trace.GetFrames();
 
             var initiatingFrame = frames?.LastOrDefault(s => s.GetMethod().DeclaringType == testObject.GetType());
             if (initiatingFrame == null)
                 return null;
 
             return Configurator.Scanners.Humanize(initiatingFrame.GetMethod().Name);
+#else
+            return null;
+#endif
         }
     }
 }