remove unnecessary files

-import React from "react";
-import Styled from "styled-components";
-
-const Article = Styled.div`
-    width: 70%;
-    justify-content: center;
-    align-items: center;
-    text-align: center;
-    margin-top: 10px;
-    border-top: 1px solid black;
-`;
-
-export default () => {
-  return (
-    <Article>
-      <h1>Article Title</h1>
-    </Article>
-  );
-};

-import React from "react";
-import Styled from "styled-components";
-import MenuList from "./MenuList";
-import Article from "./Article";
-
-const Grid = Styled.div`
-    width: 100%;
-    display: flex;
-`;
-
-export default () => {
-  return (
-    <Grid>
-      <MenuList />
-      <Article />
-    </Grid>
-  );
-};

-import React from "react";
-import Styled from "styled-components";
-
-const Header = Styled.div`
-    width: 100%;
-    display: flex;
-    justify-content: center;
-    margin: 10px 0px;
-    font-size: 25px;
-    font-family: 'Source Code Pro';
-    font-weight: 200;
-    font-size: 40px;
-`;
-
-export default () => {
-  return (
-    <Header>
-      <h1>KHU Chatting service</h1>
-    </Header>
-  );
-};

-import React from "react";
-import Styled from "styled-components";
-
-const Image = Styled.div`
-    width: 100%;
-    margin: 20px 0px;
-    display: flex;
-    justify-content: center;
-`;
-
-export default () => {
-  return (
-    <Image>
-      <img src="" alt="sample"></img>
-    </Image>
-  );
-};

-import React from "react";
-import Styled from "styled-components";
-//import { FontAwesomeIcon } from "@fortawesome/react-fontawesome";
-//import { faList, faAddressBook } from "@fortawesome/free-solid-svg-icons";
-import PropTypes from "prop-types";
-
-const Container = Styled.div`
-  width: 400px;
-  height: 100%;
-`;
-
-const Switch = ({ checked = false, isChecked, onClick }) => (
-  <Container checked={checked} onClick={onClick} isChecked={isChecked} />
-);
-
-Switch.propTypes = {
-  checked: PropTypes.bool,
-  isChecked: PropTypes.func,
-  onClick: PropTypes.func,
-};
-
-export default () => {
-  return <Switch />;
-};