Remove X/Twitter from README

README.md

@@ -17,7 +17,6 @@
   | <a href="#installation"><b>Installation</b></a>
   | <a href="#usage"><b>Usage</b></a>
   | <a href="#examples"><b>Examples</b></a>
-  | <a href="https://x.com/labelmeai"><b>X/Twitter</b></a>
   <!-- | <a href="https://github.com/wkentaro/labelme/discussions"><b>Community</b></a> -->
   <!-- | <a href="https://www.youtube.com/playlist?list=PLI6LvFw0iflh3o33YYnVIfOpaO0hc5Dzw"><b>Youtube FAQ</b></a> -->
 </div>