refactor: remove custom headings component from md in chat

Author: moonmeister

src/components/chat/messages.jsx

@@ -2,7 +2,6 @@ import { useEffect, useRef } from "react";
 import Markdown from "react-markdown";
 import remarkGfm from "remark-gfm";
 import ChatLink from "./chat-link";
-import { getMDXComponents } from "@/components/mdx-components";
 import { classNames } from "@/utils/strings";
 
 export default function Messages({ messages, className }) {
@@ -43,7 +42,6 @@ export default function Messages({ messages, className }) {
 							<Markdown
 								remarkPlugins={[remarkGfm]}
 								components={{
-									...getMDXComponents(),
 									a: ChatLink,
 								}}
 							>