Bug 1925033 - Use Services.focus for bookmarking from mailnews. r=IanN

suite/components/places/PlacesUIUtils.jsm

@@ -1156,7 +1156,7 @@ var PlacesUIUtils = {
       info.hiddenRows.push("keyword");
 
     return this.showBookmarkDialog(info,
-                                   focusManager.activeWindow ||
+                                   Services.focus.activeWindow ||
                                    Services.wm.getMostRecentWindow(null));
   },
 
@@ -1379,10 +1379,6 @@ XPCOMUtils.defineLazyGetter(PlacesUIUtils, "ellipsis", function() {
                                         Ci.nsIPrefLocalizedString).data;
 });
 
-XPCOMUtils.defineLazyServiceGetter(this, "focusManager",
-                                   "@mozilla.org/focus-manager;1",
-                                   "nsIFocusManager");
-
 /**
  * Determines if an unwrapped node can be moved.
  *