Removed unused import Firework

Author: LoneDev6

src/main/java/ru/meloncode/xmas/Events.java

@@ -4,7 +4,6 @@
 import org.bukkit.block.Block;
 import org.bukkit.block.BlockFace;
 import org.bukkit.entity.EntityType;
-import org.bukkit.entity.Firework;
 import org.bukkit.entity.Player;
 import org.bukkit.event.EventHandler;
 import org.bukkit.event.EventPriority;