[LIP-12] DPX Market Deprecation

With Dopex migrating to a new token, we move to deprecate this market. Two market functions, minting and borrowing, are temporarily suspended while the proposal is being considered.

Voting Instructions:

Vote Yes if you agree to:

Set DPX collateral factor from .15 to 0 Keep market functions paused

Vote No if you are against it

If passed, effective on December 1st.