fix: Fixed bookmarks not being synced with mozilla account, b=bug #12133, c=workspaces

src/zen/workspaces/ZenWorkspaceBookmarksStorage.js

@@ -57,12 +57,6 @@ window.ZenWorkspaceBookmarksStorage = {
         CREATE INDEX IF NOT EXISTS idx_bookmarks_workspaces_changes
           ON zen_bookmarks_workspaces_changes(bookmark_guid, workspace_uuid)
       `);
-
-        // Before, workspace_uuid was a FOREIGN KEY, not anymore, so we need to drop the constraint
-        // This is a no-op if the constraint doesn't exist
-        await db.execute(`
-          PRAGMA foreign_keys = OFF;
-        `);
       }
     );
   },