Remove deprecated plugins option

This removes the already deprecated option `plugins`.
It’s renamed to `remarkPlugins`.

changelog.md

@@ -2,6 +2,13 @@
 
 All notable changes will be documented in this file.
 
+## 8.0.0 - 2022-01-17
+
+### Change `plugins` to `remarkPlugins`
+
+This removes the already deprecated option `plugins`.
+It’s renamed to `remarkPlugins`.
+
 ## 7.0.1 - 2021-08-26
 
 *   [`ec387c2`](https://github.com/remarkjs/react-markdown/commit/ec387c2)

lib/react-markdown.js

@@ -10,7 +10,6 @@
  * @property {string} children
  *
  * @typedef PluginOptions
- * @property {PluggableList} [plugins=[]] **deprecated**: use `remarkPlugins` instead
  * @property {PluggableList} [remarkPlugins=[]]
  * @property {PluggableList} [rehypePlugins=[]]
  * @property {import('remark-rehype').Options} [remarkRehypeOptions={}]
@@ -42,6 +41,7 @@ const changelog =
 
 /** @type {Record<string, Deprecation>} */
 const deprecated = {
+  plugins: {to: 'plugins', id: 'change-plugins-to-remarkplugins'},
   renderers: {to: 'components', id: 'change-renderers-to-components'},
   astPlugins: {id: 'remove-buggy-html-in-markdown-parser'},
   allowDangerousHtml: {id: 'remove-buggy-html-in-markdown-parser'},
@@ -86,8 +86,7 @@ export function ReactMarkdown(options) {
 
   const processor = unified()
     .use(remarkParse)
-    // TODO: deprecate `plugins` in v8.0.0.
-    .use(options.remarkPlugins || options.plugins || [])
+    .use(options.remarkPlugins || [])
     .use(remarkRehype, {
       ...options.remarkRehypeOptions,
       allowDangerousHtml: true