spotless apply

Author: Faithcaio

src/main/java/org/spongepowered/common/data/provider/item/stack/ItemStackData.java

@@ -56,7 +56,6 @@
 import org.spongepowered.common.SpongeCommon;
 import org.spongepowered.common.adventure.SpongeAdventure;
 import org.spongepowered.common.data.provider.DataProviderRegistrator;
-import org.spongepowered.common.inventory.EmptyInventoryImpl;
 import org.spongepowered.common.item.util.ItemStackUtil;
 
 import java.util.ArrayList;