chore(quota): drop the Kimi Code quota reader (Kimi already left the catalog)

Redone on v2.8.22 from 3179d25 (feat/grok-usage, never merged).

client/src/lib/types.ts

@@ -1216,7 +1216,7 @@ export interface CostResult {
 
 /** GET /api/pricing/quota: plan quota spent per native tool (server/lib/quota.js). */
 export interface ToolQuota {
-  id: "claude" | "codex" | "antigravity" | "cursor" | "kimi";
+  id: "claude" | "codex" | "antigravity" | "cursor";
   /** One per plan window: `5h`, `wk`, `mo`, …; `usedPercent` is 0–100.
    *  `group` names the model pool a window belongs to (Antigravity's). */
   windows: Array<{