removed unused use statements in Search class
removed unused use statements in Search class

GrandLTU/ElasticsearchBundle,asev/ElasticsearchBundle,tautrimas/ElasticsearchBundle,murnieza/ElasticsearchBundle,martiis/ElasticsearchBundle,lmikelionis/ElasticsearchBundle,GrandLTU/ElasticsearchBundle,saimaz/ElasticsearchBundle,tautrimas/ElasticsearchBundle,murnieza/ElasticsearchBundle,abhiesa-tolexo/ElasticsearchBundle,ndinh215/ONGRElasticsearchBundle,martiis/ElasticsearchBundle,abhiesa-tolexo/ElasticsearchBundle,saimaz/ElasticsearchBundle,asev/ElasticsearchBundle,ongr-io/ElasticsearchBundle,trandangtri/ElasticsearchBundle,trandangtri/ElasticsearchBundle,ndinh215/ONGRElasticsearchBundle