Removed spurious newline.

core/src/main/java/pl/tkowalcz/tjahzi/LabelSerializers.java

@@ -4,7 +4,6 @@ public class LabelSerializers {
 
     private static final ThreadLocal<LabelSerializer> THREAD_LOCAL = ThreadLocal.withInitial(LabelSerializer::new);
 
-
     public static LabelSerializer threadLocal() {
         LabelSerializer result = THREAD_LOCAL.get();
         result.clear();