Proposal #87: Remove Kimi K2.6 model

Remove moonshotai/Kimi-K2.6 from PoC params and delete it from the governance model list.

• Status: Passed (submitted 2026-07-16)
• Tally by voting weight: yes 100.0%, no 0.0%, abstain 0.0%, no with veto 0.0%
• Proposer: gonka1y2a9p56kv044327uycmqdexl7zs82fs5ryv5le
• Messages: MsgUpdateParams, MsgDeleteGovernanceModel