v0.3.0b: corrected teleportation working in goo level, also mildly refactored cursed wand teleport effect

src/com/shatteredpixel/shatteredpixeldungeon/levels/SewerBossLevel.java

@@ -237,6 +237,12 @@ public class SewerBossLevel extends RegularLevel {
 			drop( item, pos ).type = Heap.Type.REMAINS;
 		}
 	}
+
+	@Override
+	public int randomRespawnCell() {
+		return -1;
+	}
+
 	
 	public void seal() {
 		if (entrance != 0) {