removed UABatchUpdateResult from message list header, since we're not actually using it.
removed UABatchUpdateResult from message list header, since we're not
actually using it.

ipmobiletech/ios-library,grosch/ios-library,ipmobiletech/ios-library,zhangqinghe/ios-library,grosch/ios-library,grosch/ios-library,zhangqinghe/ios-library,jamesstout/ios-library_LITE,mikerowan/ios-library,zhangqinghe/ios-library,jamesstout/ios-library_LITE,ipmobiletech/ios-library,jamesstout/ios-library_LITE,mikerowan/ios-library,manuyavuz/ios-library,mikerowan/ios-library,manuyavuz/ios-library,manuyavuz/ios-library