spotless cleanup

Author: mezz

Library/src/main/java/mezz/jei/library/plugins/vanilla/ingredients/ItemStackListFactory.java

@@ -23,7 +23,6 @@
 import org.apache.logging.log4j.Level;
 import org.apache.logging.log4j.LogManager;
 import org.apache.logging.log4j.Logger;
-import org.apache.logging.log4j.Marker;
 import org.jetbrains.annotations.Nullable;
 import org.jetbrains.annotations.Unmodifiable;