Always writeback pointer data

User sort isn't tracked, and reorganizes pointers. Set it back always,
no harm as values should always be sensical.

Closes #2171

PKHeX.Core/Saves/Substructures/Gen7/PokeListHeader.cs

@@ -142,8 +142,7 @@ public bool CompressStorage()
             if (FollowerIndex > count && FollowerIndex != SLOT_EMPTY)
                 RemoveFollower();
 
-            if (result)
-                SetPointerData(PokeListInfo);
+            SetPointerData(PokeListInfo);
             return result;
         }
     }