DOUAudioFileProvider: remove __weak
DOUAudioFileProvider: remove __weak

NghiaTranUIT/DOUAudioStreamer,talkmate/DOUAudioStreamer,hjw6160602/DOUAudioStreamer,royalwang/DOUAudioStreamer,talkmate/DOUAudioStreamer,xuanyi0627/DOUAudioStreamer,ycaihua/DOUAudioStreamer,QiuZhiFei/DOUAudioStreamer,sunfei/DOUAudioStreamer,royalwang/DOUAudioStreamer,NghiaTranUIT/DOUAudioStreamer,vinceee/DOUAudioStreamer,zhantss/DOUAudioStreamer,douban/DOUAudioStreamer,jonesgithub/DOUAudioStreamer,xuanyi0627/DOUAudioStreamer,jonesgithub/DOUAudioStreamer,xuanyi0627/DOUAudioStreamer,hjw6160602/DOUAudioStreamer,sunfei/DOUAudioStreamer,zhantss/DOUAudioStreamer,zhouwude/DOUAudioStreamer,royalwang/DOUAudioStreamer,vinceee/DOUAudioStreamer,eyu1988/DOUAudioStreamer,cute/DOUAudioStreamer,NghiaTranUIT/DOUAudioStreamer,ycaihua/DOUAudioStreamer,eyu1988/DOUAudioStreamer,zhouwude/DOUAudioStreamer,hjw6160602/DOUAudioStreamer,cute/DOUAudioStreamer,douban/DOUAudioStreamer,Learn-IOS/DOUAudioStreamer,QiuZhiFei/DOUAudioStreamer,Learn-IOS/DOUAudioStreamer,sunfei/DOUAudioStreamer