diff --git a/src/files.js b/src/files.js
index 23e37cede1b..680d7cc910e 100644
--- a/src/files.js
+++ b/src/files.js
@@ -22,7 +22,6 @@
 
 import Vue from 'vue'
 import FilesEditor from './components/FilesEditor'
-import PreviewPlugin from './files/PreviewPlugin'
 import { registerFileActionFallback, registerFileCreate, FilesWorkspacePlugin } from './helpers/files'
 import { openMimetypesMarkdown, openMimetypesPlainText } from './helpers/mime'
 import FilesSettings from './views/FilesSettings'
@@ -48,7 +47,6 @@ document.addEventListener('DOMContentLoaded', () => {
 			group: null,
 		})
 	}
-	OC.Plugins.register('OCA.Files.SidebarPreviewManager', new PreviewPlugin())
 
 	if (workspaceAvailable) {
 		const settings = document.createElement('div')
diff --git a/src/files/PreviewPlugin.js b/src/files/PreviewPlugin.js
deleted file mode 100644
index f330d992690..00000000000
--- a/src/files/PreviewPlugin.js
+++ /dev/null
@@ -1,92 +0,0 @@
-/*
- * @copyright Copyright (c) 2019 Julius Härtl <jus@bitgrid.net>
- *
- * @author Julius Härtl <jus@bitgrid.net>
- *
- * @license GNU AGPL version 3 or any later version
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU Affero General Public License as
- * published by the Free Software Foundation, either version 3 of the
- * License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU Affero General Public License for more details.
- *
- * You should have received a copy of the GNU Affero General Public License
- * along with this program. If not, see <http://www.gnu.org/licenses/>.
- *
- */
-import axios from '@nextcloud/axios'
-
-export default class PreviewPlugin {
-
-	constructor() {
-		this.initPromise = null
-		this.vue = null
-		this.ReadOnlyEditor = null
-		this.view = null
-	}
-
-	init() {
-		if (!this.initPromise) {
-			this.initPromise = Promise.all([
-				import(/* webpackChunkName: "preview" */'vue'),
-				import(/* webpackChunkName: "preview" */'./../components/ReadOnlyEditor'),
-			]).then((exports) => {
-				this.Vue = exports[0].default
-				this.ReadOnlyEditor = exports[1].default
-			})
-		}
-		return this.initPromise
-	}
-
-	attach(manager) {
-		manager.addPreviewHandler('text/markdown', this.handlePreview.bind(this))
-	}
-
-	handlePreview(model, $thumbnailDiv, $thumbnailContainer, fallback) {
-		if (this.view !== null) {
-			this.view.$destroy()
-			this.view = null
-		}
-
-		const previewWidth = ($thumbnailContainer.parent().width())
-		const previewHeight = previewWidth / (16 / 9)
-
-		Promise.all([
-			this.getFileContent(model.getFullPath()),
-			this.init(),
-		]).then(([{ data }]) => {
-			$thumbnailContainer.addClass('text')
-			const textPreview = document.createElement('div')
-			$thumbnailDiv.children('.stretcher').remove()
-			$thumbnailDiv.append(textPreview)
-			$thumbnailDiv.css('max-height', previewHeight)
-			$thumbnailDiv.css('display', 'flex')
-			$thumbnailDiv.removeClass('icon-loading icon-32')
-			this.Vue.prototype.t = window.t
-			this.Vue.prototype.n = window.n
-			this.Vue.prototype.OCA = window.OCA
-			this.view = new this.Vue({
-				render: h => h(this.ReadOnlyEditor, {
-					props: {
-						content: data,
-						isRichEditor: model.get('mimetype') === 'text/markdown',
-					},
-				}),
-			})
-			this.view.$mount(textPreview)
-		}).catch(() => {
-			fallback()
-		})
-	}
-
-	getFileContent(path) {
-		const url = OC.linkToRemoteBase('files' + path)
-		return axios.get(url)
-	}
-
-}