Resolve "Java puzzle code"

Closes #104 (closed)

java-puzzles/src/test/java/fr/ippon/PlayingWithBigDecimal.java

-/**
- *
- */
 package fr.ippon;
 
 import static org.assertj.core.api.Assertions.*;
@@ -8,11 +5,6 @@ import static org.assertj.core.api.Assertions.*;
 import java.math.BigDecimal;
 import org.junit.jupiter.api.Test;
 
-/**
- * Simple puzzle around {@link BigDecimal}
- *
- * @author ippon
- */
 public class PlayingWithBigDecimal {
 
   @Test