programs/firefox: remove some dead code

hosts/common/programs/firefox/default.nix

@@ -43,61 +43,6 @@ let
     ];
 
     nixExtensions = concatMap (ext: optional ext.enable ext.package) (attrValues cfg.addons);
-
-    # extraPolicies: only really required if using firefox; else, easier to configure this via overrides.cfg.
-    # extraPolicies = {
-    #   FirefoxHome = {
-    #     Search = true;
-    #     Pocket = false;
-    #     Snippets = false;
-    #     TopSites = false;
-    #     Highlights = false;
-    #   };
-    #   NoDefaultBookmarks = true;
-    #   OfferToSaveLogins = false;
-    #   OfferToSaveLoginsDefault = false;
-    #   PasswordManagerEnabled = false;
-    #   SearchEngines = {
-    #     Default = "DuckDuckGo";
-    #   };
-    #   UserMessaging = {
-    #     ExtensionRecommendations = false;
-    #     FeatureRecommendations = false;
-    #     SkipOnboarding = true;
-    #     UrlbarInterventions = false;
-    #     WhatsNew = false;
-    #   };
-
-    #   # these were taken from Librewolf
-    #   AppUpdateURL = "https://localhost";
-    #   DisableAppUpdate = true;
-    #   OverrideFirstRunPage = "";
-    #   OverridePostUpdatePage = "";
-    #   DisableSystemAddonUpdate = true;
-    #   DisableFirefoxStudies = true;
-    #   DisableTelemetry = true;
-    #   DisableFeedbackCommands = true;
-    #   DisablePocket = true;
-    #   DisableSetDesktopBackground = false;
-
-    #   # remove many default search providers
-    #   # XXX this seems to prevent the `nixExtensions` from taking effect
-    #   # Extensions.Uninstall = [
-    #   #   "google@search.mozilla.org"
-    #   #   "bing@search.mozilla.org"
-    #   #   "amazondotcom@search.mozilla.org"
-    #   #   "ebay@search.mozilla.org"
-    #   #   "twitter@search.mozilla.org"
-    #   # ];
-    #   # XXX doesn't seem to have any effect...
-    #   # docs: https://github.com/mozilla/policy-templates#homepage
-    #   # Homepage = {
-    #   #   HomepageURL = "https://uninsane.org/";
-    #   #   StartPage = "homepage";
-    #   # };
-    #   # NewTabPage = true;
-    # };
-    # extraPrefs = ...
   }).overrideAttrs (base: {
     nativeBuildInputs = (base.nativeBuildInputs or []) ++ [
       pkgs.copyDesktopItems