diff --git a/testing/marionette/atom.js b/testing/marionette/atom.js
index 0a803cf1204a..53ebd380bcde 100644
--- a/testing/marionette/atom.js
+++ b/testing/marionette/atom.js
@@ -17,91 +17,6 @@ this.EXPORTED_SYMBOLS = ["atom"];
 /** @namespace */
 this.atom = {};
 
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