diff --git a/lib/utils/case-map.js b/lib/utils/case-map.js
index 0f87213d3f..feaf52dda9 100644
--- a/lib/utils/case-map.js
+++ b/lib/utils/case-map.js
@@ -20,9 +20,6 @@ const CAMEL_TO_DASH = /([A-Z])/g;
  * @summary Module that provides utilities for converting between "dash-case"
  *   and "camelCase".
  */
-`TODO(modulizer): A namespace named Polymer.CaseMap was
-declared here. The surrounding comments should be reviewed,
-and this string can then be deleted`;
 
 /**
  * Converts "dash-case" identifier (e.g. `foo-bar-baz`) to "camelCase"