Remove unneded imports.

src/pages/index.tsx

@@ -1,4 +1,4 @@
-import React, { Fragment, useEffect, useRef, useState } from "react";
+import React, { Fragment, useEffect, useRef } from "react";
 import { Box } from "@chakra-ui/react";
 import { format } from "date-fns";
 import Calender from "../components/calender";