* * CAUTION: this function clears up the entire `dex` module store, so it should only ever * be used outside of a production setting.

* * No `dex` state exists in any public chain at the time this data type update happened.

* * No `dex` state exists in any public chain at the time this data type update happened.

This migration updates contract info to match the new data format.

This migration deprecates the tick size store keys and registered pair count store keys.