remove old Collapse component

components/Collapse.js

@@ -1,29 +0,0 @@
-import React from 'react'
-import Toggle from './Toggle'
-
-import { toggle } from '../lib/util'
-
-class Collapse extends React.PureComponent {
-  state = {
-    open: false
-  }
-
-  toggle = () => this.setState(toggle('open'))
-
-  render() {
-    if (this.state.open) {
-      return this.props.children
-    }
-    return (
-      <Toggle
-        enabled={false}
-        center={true}
-        label={this.props.label}
-        className="collapse"
-        onChange={this.toggle}
-      />
-    )
-  }
-}
-
-export default Collapse