Optimize imports

app/src/main/java/com/nextcloud/talk/application/NextcloudTalkApplication.java

@@ -50,7 +50,6 @@ import javax.inject.Singleton;
 import androidx.lifecycle.LifecycleObserver;
 import androidx.multidex.MultiDex;
 import androidx.multidex.MultiDexApplication;
-import androidx.work.Configuration;
 import androidx.work.OneTimeWorkRequest;
 import androidx.work.PeriodicWorkRequest;
 import androidx.work.WorkManager;

app/src/main/java/com/nextcloud/talk/controllers/ConversationInfoController.java

@@ -42,7 +42,6 @@ import com.nextcloud.talk.application.NextcloudTalkApplication;
 import com.nextcloud.talk.controllers.base.BaseController;
 import com.nextcloud.talk.models.database.UserEntity;
 import com.nextcloud.talk.models.json.converters.EnumNotificationLevelConverter;
-import com.nextcloud.talk.models.json.converters.EnumParticipantTypeConverter;
 import com.nextcloud.talk.models.json.participants.Participant;
 import com.nextcloud.talk.models.json.participants.ParticipantsOverall;
 import com.nextcloud.talk.models.json.rooms.Conversation;
@@ -58,9 +57,6 @@ import com.yarolegovich.mp.MaterialPreferenceScreen;
 import org.parceler.Parcels;
 
 import java.util.ArrayList;
-import java.util.Collections;
-import java.util.Comparator;
-import java.util.HashMap;
 import java.util.List;
 
 import javax.inject.Inject;

app/src/main/java/com/nextcloud/talk/models/database/ArbitraryStorage.java

@@ -26,7 +26,6 @@ import java.io.Serializable;
 
 import io.requery.Entity;
 import io.requery.Key;
-import io.requery.Nullable;
 import io.requery.Persistable;
 
 @Entity

app/src/main/java/com/nextcloud/talk/utils/database/arbitrarystorage/ArbitraryStorageUtils.java

@@ -19,21 +19,11 @@
  */
 package com.nextcloud.talk.utils.database.arbitrarystorage;
 
-import android.text.TextUtils;
-
 import com.nextcloud.talk.models.database.ArbitraryStorage;
 import com.nextcloud.talk.models.database.ArbitraryStorageEntity;
-import com.nextcloud.talk.models.database.User;
-import com.nextcloud.talk.models.database.UserEntity;
-
-import java.util.List;
 
 import androidx.annotation.Nullable;
-import io.reactivex.Completable;
 import io.reactivex.Observable;
-import io.reactivex.Observer;
-import io.reactivex.android.schedulers.AndroidSchedulers;
-import io.reactivex.disposables.Disposable;
 import io.reactivex.schedulers.Schedulers;
 import io.requery.Persistable;
 import io.requery.query.Result;