Remove unnecessary components.

client/components/FileDescription.js

@@ -1,11 +0,0 @@
-import React from 'react';
-
-export default class FileDescription extends React.Component {
-
-  render() {
-    return <div className="file-description">
-      <span className="file-name">{this.props.file.name}</span>
-    </div>;
-  }
-
-}

client/components/Header.js

@@ -1,12 +0,0 @@
-import React from 'react';
-
-export default class Header extends React.Component {
-
-  render() {
-    return <div className="header">
-      <div className="header-title">WebDrop</div>
-      <div className="header-subtitle">Send Files, Easily.</div>
-    </div>
-  }
-
-}