diff --git a/src/features/compose/editor/nodes/mention-node.tsx b/src/features/compose/editor/nodes/mention-node.tsx
deleted file mode 100644
index a559eda40..000000000
--- a/src/features/compose/editor/nodes/mention-node.tsx
+++ /dev/null
@@ -1,69 +0,0 @@
-/**
- * This source code is derived from code from Meta Platforms, Inc.
- * and affiliates, licensed under the MIT license located in the
- * LICENSE file in the /app/soapbox/features/compose/editor directory.
- */
-
-import { addClassNamesToElement } from '@lexical/utils';
-import { $applyNodeReplacement, TextNode } from 'lexical';
-
-import type {
-  EditorConfig,
-  LexicalNode,
-  NodeKey,
-  SerializedTextNode,
-} from 'lexical';
-
-class MentionNode extends TextNode {
-
-  static getType(): string {
-    return 'mention';
-  }
-
-  static clone(node: MentionNode): MentionNode {
-    return new MentionNode(node.__text, node.__key);
-  }
-
-  constructor(text: string, key?: NodeKey) {
-    super(text, key);
-  }
-
-  createDOM(config: EditorConfig): HTMLElement {
-    const element = super.createDOM(config);
-    addClassNamesToElement(element, config.theme.mention);
-    return element;
-  }
-
-  static importJSON(serializedNode: SerializedTextNode): MentionNode {
-    const node = $createMentionNode(serializedNode.text);
-    node.setFormat(serializedNode.format);
-    node.setDetail(serializedNode.detail);
-    node.setMode(serializedNode.mode);
-    node.setStyle(serializedNode.style);
-    return node;
-  }
-
-  exportJSON(): SerializedTextNode {
-    return {
-      ...super.exportJSON(),
-      type: 'mention',
-    };
-  }
-
-  canInsertTextBefore(): boolean {
-    return false;
-  }
-
-  isTextEntity(): true {
-    return true;
-  }
-
-}
-
-const $createMentionNode = (text = ''): MentionNode => $applyNodeReplacement(new MentionNode(text));
-
-const $isMentionNode = (
-  node: LexicalNode | null | undefined,
-): node is MentionNode => node instanceof MentionNode;
-
-export { MentionNode, $createMentionNode, $isMentionNode };