Hi! Madara [Five Kage Conference] just like Han, can only remove buffs that last for an X amount of rounds. Barriers are not included in this as Barriers are not considered buffs.

For example:

Passives like Pose of Duel or Defense Knowledge cannot be removed by Madara [Five Kage Conference] as they are buffs without a limit of rounds and are active as long as the requirements are met.

On the other hand, talents like Wind Dance (Column buff) can be removed as it lasts an X amount of rounds.

Here is a guide courtesy of ICE* that addresses more information in regards to Buffs: Click Here

~Jib