refactor: Clean up background.js by removing commented-out code

Author: medyo

public/background.js

@@ -1,9 +1,4 @@
-/*chrome.browserAction.onClicked.addListener(function (tab) {
-  chrome.tabs.create({ url: "chrome://newtab" });
-}
-);*/
-
 const uninstallUrl = `https://hackertab.dev/uninstall.html`
 if (chrome.runtime.setUninstallURL) {
   chrome.runtime.setUninstallURL(uninstallUrl)
-}
+}