--- a/medium-popup-disable.user.js	Sun Jan 15 23:46:56 2023 +0900
+++ b/medium-popup-disable.user.js	Sun Jan 15 23:49:35 2023 +0900
@@ -14,15 +14,11 @@
 
 'use strict';
 
-function removeHighlightPopup () {
-  const popups = document.getElementsByClassName('highlightMenu');
-  const killPopup = function (popup) {
-    popup.style.display = 'none';
-  };
-  const killPopups = function () {
-    Array.prototype.forEach.call(popups, killPopup);
-  };
-  document.addEventListener('click', killPopups);
-}
-
-removeHighlightPopup();
+const popups = document.getElementsByClassName('highlightMenu');
+const killPopup = function (popup) {
+  popup.style.display = 'none';
+};
+const killPopups = function () {
+  Array.prototype.forEach.call(popups, killPopup);
+};
+document.addEventListener('click', killPopups);