Removal of trading pairs is not supported

The PairStorage contract allows adding pairs but currently lacks functionality to remove or delist pairs. We suggest adding a delisting feature in case a pair is needed to be removed in the future. This could be done by setting isPairIndexListed and isPairListed as false for the pair to be delisted.

This issue has been acknowledged by Ostium Labs, and a fix was implemented in commit bf6d763c↗.