Backed out changeset 232515e209c7 (bug 1940476) for causing bc failures @ browser_asrouter_trigger_docs.js

browser/components/asrouter/modules/ASRouterTargeting.sys.mjs

@@ -53,7 +53,6 @@ ChromeUtils.defineESModuleGetters(lazy, {
   // eslint-disable-next-line mozilla/no-browser-refs-in-toolkit
   SelectableProfileService:
     "resource:///modules/profiles/SelectableProfileService.sys.mjs",
-  SessionStore: "resource:///modules/sessionstore/SessionStore.sys.mjs",
   TargetingContext: "resource://messaging-system/targeting/Targeting.sys.mjs",
   TelemetryEnvironment: "resource://gre/modules/TelemetryEnvironment.sys.mjs",
   TelemetrySession: "resource://gre/modules/TelemetrySession.sys.mjs",
@@ -749,18 +748,6 @@ const TargetingGetters = {
   get needsUpdate() {
     return QueryCache.queries.CheckBrowserNeedsUpdate.get();
   },
-  get savedTabGroups() {
-    return lazy.SessionStore.getSavedTabGroups().length;
-  },
-  get currentTabGroups() {
-    let win = lazy.BrowserWindowTracker.getTopWindow();
-    // If there's no window, there can't be any current tab groups.
-    if (!win) {
-      return 0;
-    }
-    let totalTabGroups = win.gBrowser.getAllTabGroups().length;
-    return totalTabGroups;
-  },
   get hasPinnedTabs() {
     for (let win of Services.wm.getEnumerator("navigator:browser")) {
       if (win.closed || !win.ownerGlobal.gBrowser) {