Remove extra parentheses

Signed-off-by: Mario Danic <mario@lovelyhq.com>

src/main/java/com/owncloud/android/files/services/FileUploader.java

@@ -943,7 +943,7 @@ public class FileUploader extends Service
                         cancel(mCurrentUpload.getAccount().name, mCurrentUpload.getFile().getRemotePath()
                                 , ResultCode.DELAYED_FOR_WIFI);
                     } else if (mCurrentUpload.getIsChargingRequired() &&
-                            (!Device.getBatteryStatus(MainApp.getAppContext()).isCharging())) {
+                            !Device.getBatteryStatus(MainApp.getAppContext()).isCharging()) {
                         cancel(mCurrentUpload.getAccount().name, mCurrentUpload.getFile().getRemotePath()
                                 , ResultCode.DELAYED_FOR_CHARGING);
                     } else if (!mCurrentUpload.getIsIgnoringPowerSaveMode() &&