message: style: remove typing
diff: @@ -108,7 +108,6 @@ export interface PostMsgSelection extends Omit<MsgSelection, 'type'> {
  export interface MsgOpenUrl {
  readonly type: MsgType.OpenURL
  readonly url: string
  - readonly placeholder?: false
  /** use browser.runtime.getURL? */
  readonly self?: boolean
  }
  