Complete withdrawal of tokens is not possible

[k1rill-fedoseev]

In the bridge modes where fee collection is supported at the destination side, it can be impossible to withdraw all the tokens back to the originating side of the bridge. Once reward receiver or validator decides to withdraw his/her collected fees, portion of that amount will be redistributed again and again between the same set of receivers.

Consider to disable fee collection and distribution for Home -> Foreign transfers if the sender belongs to the reward receivers set in the following bridge modes:

• erc-to-erc
• erc-to-native
• amb-erc-to-native
• amb-stake

Similar bug was fixed for the Omni bridge (multi-token-extension) in the #538