fix: pwat stack overflow (#6952)

src/hooks/useTokenAllowance.ts

@@ -75,5 +75,7 @@ export function useRevokeTokenAllowance(
   token: Token | undefined,
   spender: string
 ): () => Promise<{ response: ContractTransaction; info: ApproveTransactionInfo }> {
-  return useUpdateTokenAllowance(token ? CurrencyAmount.fromRawAmount(token, 0) : undefined, spender)
+  const amount = useMemo(() => (token ? CurrencyAmount.fromRawAmount(token, 0) : undefined), [token])
+
+  return useUpdateTokenAllowance(amount, spender)
 }