chore: add no unused vars lint rule

components/Blocks/DynamicContent/Rewards/Redeem/useRedeemFlow.ts

@@ -4,8 +4,6 @@ import { createContext, useCallback, useContext, useEffect } from "react"
 
 import { trpc } from "@/lib/trpc/client"
 
-import useLang from "@/hooks/useLang"
-
 import type { RedeemFlowContext } from "@/types/components/myPages/myPage/accountPage"
 import type { RewardWithRedeem } from "@/server/routers/contentstack/reward/output"
 
@@ -27,7 +25,6 @@ export default function useRedeemFlow() {
     timeRemaining,
     setTimeRemaining,
   } = useContext(RedeemContext)
-  const lang = useLang()
 
   const update = trpc.contentstack.rewards.redeem.useMutation<{
     rewards: RewardWithRedeem[]