public function removeTeamFromPhase(Phase $phase, Team $team)
{
$isClear = true;
foreach ($phase->getPools() as $pool) {
$isClear &= $this->removeTeamFromPool($pool, $team);
}
if ($isClear) {
$phase->removeTeam($team);
}
$this->em->flush();
return $isClear;
}