message: chore(masthead): remove data type
  ### Description
  Removes a data type from `<dds-masthead-container>`, given it's defined in another file and no longer used.
  ### Changelog
  **Removed**
  A data type from `<dds-masthead-container>`.
diff: @@ -29,31 +29,6 @@ import DDSMastheadComposite from './masthead-composite';
  const { stablePrefix: ddsPrefix } = ddsSettings;
  -/**
  - * An profile item in masthead.
  - */
  -export interface MastheadProfileItem {
  - /**
  - * `true` if this profile item is for logging in.
  - */
  - isLoginItem?: boolean;
  -
  - /**
  - * The key identifying this profile item within the menu.
  - */
  - key: string;
  -
  - /**
  - * The title text.
  - */
  - title: string;
  -
  - /**
  - * The link URL.
  - */
  - url?: string;
  -}
  -
  /**
  * The Redux state used for `<dds-masthead-container>`.
  */
  