Remove some imports

src/com/owncloud/android/operations/common/SyncOperation.java

@@ -23,7 +23,6 @@ import com.owncloud.android.lib.common.operations.OnRemoteOperationListener;
 import com.owncloud.android.lib.common.operations.RemoteOperation;
 import com.owncloud.android.lib.common.operations.RemoteOperationResult;
 
-import android.app.Activity;
 import android.content.Context;
 import android.os.Handler;
 

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

@@ -19,14 +19,11 @@
 package com.owncloud.android.ui.activity;
 
 import java.io.File;
-import java.io.IOException;
-
 import org.apache.commons.httpclient.Credentials;
 
 import android.accounts.Account;
 import android.accounts.AccountManager;
 import android.accounts.AuthenticatorException;
-import android.accounts.OperationCanceledException;
 import android.app.AlertDialog;
 import android.app.Dialog;
 import android.app.ProgressDialog;
@@ -76,8 +73,6 @@ import com.owncloud.android.operations.CreateFolderOperation;
 
 import com.owncloud.android.lib.common.OwnCloudClient;
 import com.owncloud.android.lib.common.OwnCloudClientMap;
-import com.owncloud.android.lib.common.accounts.AccountUtils;
-import com.owncloud.android.lib.common.accounts.AccountUtils.AccountNotFoundException;
 import com.owncloud.android.lib.common.network.BearerCredentials;
 import com.owncloud.android.lib.common.network.CertificateCombinedException;
 import com.owncloud.android.lib.common.operations.RemoteOperation;