Omit unnecessary null check on ranges

airsonic-main/src/main/java/org/airsonic/player/controller/StreamController.java

@@ -343,11 +343,8 @@ public class StreamController {
         // Second, look for "offsetSeconds" request parameter.
         String offsetSeconds = request.getParameter("offsetSeconds");
         range = parseAndConvertOffsetSeconds(offsetSeconds, file);
-        if (range != null) {
         return range;
-        }
 
-        return null;
     }
 
     @Nullable