fixed imports after rebase

Author: AndyScherzinger

src/com/owncloud/android/ui/activity/Preferences.java

@@ -21,10 +21,10 @@
  */
 package com.owncloud.android.ui.activity;
 
+import android.accounts.Account;
 import android.accounts.AuthenticatorException;
 import android.accounts.OperationCanceledException;
 import android.content.Intent;
-import android.content.ServiceConnection;
 import android.content.SharedPreferences;
 import android.content.pm.PackageInfo;
 import android.content.pm.PackageManager.NameNotFoundException;
@@ -55,11 +55,10 @@
 import com.owncloud.android.BuildConfig;
 import com.owncloud.android.MainApp;
 import com.owncloud.android.R;
+import com.owncloud.android.authentication.AccountUtils;
 import com.owncloud.android.datamodel.OCFile;
 import com.owncloud.android.datastorage.DataStorageProvider;
 import com.owncloud.android.datastorage.StoragePoint;
-import com.owncloud.android.files.services.FileDownloader;
-import com.owncloud.android.files.services.FileUploader;
 import com.owncloud.android.lib.common.OwnCloudAccount;
 import com.owncloud.android.lib.common.OwnCloudClientManagerFactory;
 import com.owncloud.android.lib.common.utils.Log_OC;