osmosis
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Fee Token Whitelist to not require OSMO pairing
The fee token whitelist is maintained in the txfees module by a subDAO that loads a list of denom:pool pairings for conversion back to OSMO at epoch.
This requires that any fee token has an OSMO pairing with liquidity.
OSMO pairings are becoming less common as we move towards stable pairings. Therefore we should be able to just load a list of whitelisted denoms and use ProtoRev/On Chain Router to process these.
Accepting any denom that has liquidity on Osmosis rather than being constrained to OSMO-paired pools will make launches/maintenance of this whitelist smoother.