Fix bug which prevented Hoppers from inserting new bottles

Fixes #1801

src/main/java/com/gmail/nossr50/skills/alchemy/AlchemyPotionBrewer.java

@@ -352,11 +352,6 @@ public final class AlchemyPotionBrewer {
         if (isValidIngredient(player, event.getItem())) {
             scheduleCheck(player, brewingStand);
 
-            return;
-        }
-        else {
-            event.setCancelled(true);
-
             return;
         }
     }