public async Task DeleteAsync(string userToDelete, UserAndOrganizationDto userOrg)
{
var user = await _usersDbSet
.SingleAsync(u => u.Id == userToDelete && u.OrganizationId == userOrg.OrganizationId);
ClearUserKudos(user);
await UnassignUserFromWallsAsync(userToDelete, userOrg.OrganizationId);
await _userManager.RemoveLoginsAsync(userToDelete);
_usersDbSet.Remove(user);
await _uow.SaveChangesAsync(userOrg.UserId);
}