Delete unsed imports.

app/src/main/java/chat/rocket/android/fragment/chatroom/RoomPresenter.java

@@ -4,9 +4,7 @@ import android.support.annotation.NonNull;
 import android.support.annotation.Nullable;
 import android.support.v4.util.Pair;
 
-import chat.rocket.persistence.realm.models.ddp.RealmUser;
 import com.hadisatrio.optional.Optional;
-import io.reactivex.Flowable;
 import io.reactivex.Single;
 import io.reactivex.android.schedulers.AndroidSchedulers;
 import io.reactivex.disposables.Disposable;

persistence-realm/src/main/java/chat/rocket/persistence/realm/repositories/RealmUserRepository.java

@@ -11,7 +11,6 @@ import io.realm.Sort;
 
 import java.util.ArrayList;
 import java.util.List;
-import chat.rocket.core.SortDirection;
 import chat.rocket.core.models.User;
 import chat.rocket.core.repositories.UserRepository;
 import chat.rocket.persistence.realm.RealmStore;