MongoUtility.Security.MongoUserEx.RemoveUserFromSystem C# (CSharp) Method

        public static void RemoveUserFromSystem(string strUser, bool isAdmin)
        {
            MongoCollection users;
            users = isAdmin
                ? RuntimeMongoDbContext.GetCurrentServer()
                    .GetDatabase(ConstMgr.DatabaseNameAdmin)
                    .GetCollection(ConstMgr.CollectionNameUsers)
                : RuntimeMongoDbContext.GetCurrentDataBase().GetCollection(ConstMgr.CollectionNameUsers);
            users.Remove(Query.EQ("user", strUser));
        }