fix: undo duplicate total_backing_collateral update
@@ -1065,7 +1065,6 @@ impl<T: Config> Pallet<T> {
if premium.is_zero() {
Self::deposit_event(Event::<T>::RedeemTokens(vault.id(), tokens.amount()));
} else {
- Self::decrease_total_backing_collateral(premium)?;
Self::transfer_funds(
CurrencySource::Collateral(vault_id.clone()),
CurrencySource::FreeBalance(redeemer_id.clone()),
