v0.4.2: skeletons are no longer immune to grim

core/src/main/java/com/shatteredpixel/shatteredpixeldungeon/actors/mobs/Skeleton.java

@@ -109,13 +109,4 @@ public class Skeleton extends Mob {
 		return Random.NormalIntRange(0, 5);
 	}
 
-	private static final HashSet<Class<?>> IMMUNITIES = new HashSet<>();
-	static {
-		IMMUNITIES.add( Grim.class );
-	}
-	
-	@Override
-	public HashSet<Class<?>> immunities() {
-		return IMMUNITIES;
-	}
 }