Remove return statement from the public destroy method

Author: rstaib

src/publics.js

@@ -47,7 +47,7 @@ $.fn.steps.destroy = function ()
 {
     var options = getOptions(this);
 
-    return destroy(this, options);
+    destroy(this, options);
 };
 
 /**
@@ -185,4 +185,4 @@ $.fn.steps.setStep = function (index, step)
 $.fn.steps.skip = function (count)
 {
     throw new Error("Not yet implemented!");
-};
+};