Epicyon now has an option on the edit profile screen to remove posts arriving from Twitter.

Posts from Twitter have always been a feature of the fediverse. In the early GNU Social times bots mirroring accounts on Twitter helped to increase the amount of interesting content, since there were not many users. But if you have been pushed out of Twitter, or ragequit, or just stopped using it for ethical reasons then it's quite understandable that you might not want to be seeing any more Twitter content. Now if you prefer it then you can have the authentic fediverse experience, without the Silicon Valley pollution.