With the vMANTA migration coming (see this [timeline](https://www.reddit.com/r/Polkadot/s/Bkc0vqSf84)), it is necessary to remove the bound-to-be-closed channels listed in the timeline. -> Plz remove the following XCM channels for MANTA: - [ ] MANTA: Manta Atlantic <> Bifrost - [ ] MANTA: Manta Atlantic <> Moonbeam (xcMANTA)
