remove uneeded use of Theme React component

apps/remix-ide/src/app/tabs/theme-module.js

@@ -2,7 +2,6 @@ import { Plugin } from '@remixproject/engine'
 import { EventEmitter } from 'events'
 import QueryParams from '../../lib/query-params'
 import * as packageJson from '../../../../../package.json'
-import { RemixUiThemeModule } from '@remix-ui/theme-module'
 import ReactDOM from 'react-dom'
 // eslint-disable-next-line no-use-before-define
 import React from 'react'
@@ -37,8 +36,6 @@ export class ThemeModule extends Plugin {
     this._deps = {
       config: registry.get('config').api
     }
-    this.element = document.createElement('div')
-    this.element.setAttribute('id', 'themeModuleSection')
     this.themes = themes.reduce((acc, theme) => {
       theme.url = window.location.origin + window.location.pathname + theme.url
       return { ...acc, [theme.name]: theme }
@@ -53,23 +50,6 @@ export class ThemeModule extends Plugin {
     this.forced = !!queryTheme
   }
 
-  onActivation () {
-    this.renderComponent()
-  }
-
-  render () {
-    return this.element
-  }
-
-  renderComponent () {
-    ReactDOM.render(
-      <RemixUiThemeModule
-        themeModule={this}
-      />,
-      this.element
-    )
-  }
-
   /** Return the active theme */
   currentTheme () {
     return this.themes[this.active]