revert back changes in c_api.h
revert back changes in c_api.h

sxjscience/mxnet,kevinthesun/mxnet,likelyzhao/mxnet,thirdwing/mxnet,tornadomeet/mxnet,apaleyes/mxnet,szha/mxnet,reminisce/mxnet,hotpxl/mxnet,wangyum/mxnet,tlby/mxnet,jennyzhang0215/incubator-mxnet,jamesliu/mxnet,ZihengJiang/mxnet,dmlc/mxnet,weleen/mxnet,madjam/mxnet,apache/incubator-mxnet,arank/mxnet,jamesliu/mxnet,Northrend/mxnet,eric-haibin-lin/mxnet,LinkHS/incubator-mxnet,CodingCat/mxnet,arank/mxnet,indhub/mxnet,rishita/mxnet,hpi-xnor/BMXNet,apaleyes/mxnet,eric-haibin-lin/mxnet,LinkHS/incubator-mxnet,leezu/mxnet,reminisce/mxnet,stefanhenneking/mxnet,Guneet-Dhillon/mxnet,zhreshold/mxnet,yajiedesign/mxnet,kkk669/mxnet,kevinthesun/mxnet,Mega-DatA-Lab/mxnet,gautamkmr/incubator-mxnet,jennyzhang0215/incubator-mxnet,gautamkmr/incubator-mxnet,likelyzhao/mxnet,Prasad9/incubator-mxnet,hesseltuinhof/mxnet,likelyzhao/mxnet,ShownX/incubator-mxnet,Ldpe2G/mxnet,crazy-cat/incubator-mxnet,eric-haibin-lin/mxnet,CodingCat/mxnet,tlby/mxnet,wangyum/mxnet,jamesliu/mxnet,coder-james/mxnet,sergeykolychev/mxnet,yuruofeifei/mxnet,ForkedReposBak/mxnet,kkk669/mxnet,coder-james/mxnet,jermainewang/mxnet,apaleyes/mxnet,madjam/mxnet,apache/incubator-mxnet,coder-james/mxnet,mbaijal/incubator-mxnet,hotpxl/mxnet,LinkHS/incubator-mxnet,kevinthesun/mxnet,yajiedesign/mxnet,apaleyes/mxnet,formath/mxnet,tlby/mxnet,thirdwing/mxnet,Guneet-Dhillon/mxnet,larroy/mxnet,crazy-cat/incubator-mxnet,madjam/mxnet,rahul003/mxnet,sergeykolychev/mxnet,sxjscience/mxnet,navrasio/mxnet,kkk669/mxnet,nicklhy/mxnet,leezu/mxnet,sergeykolychev/mxnet,dmlc/mxnet,saurabh3949/mxnet,tlby/mxnet,arikpoz/mxnet,jennyzhang0215/incubator-mxnet,hotpxl/mxnet,smolix/incubator-mxnet,lxn2/mxnet,ShownX/incubator-mxnet,formath/mxnet,coder-james/mxnet,wangyum/mxnet,szha/mxnet,madjam/mxnet,reminisce/mxnet,yajiedesign/mxnet,nicklhy/mxnet,nicklhy/mxnet,pluskid/mxnet,ptrendx/mxnet,rishita/mxnet,solin319/incubator-mxnet,rahul003/mxnet,ptrendx/mxnet,tlby/mxnet,smolix/incubator-mxnet,danithaca/mxnet,stefanhenneking/mxnet,Guneet-Dhillon/mxnet,gautamkmr/incubator-mxnet,sxjscience/mxnet,thirdwing/mxnet,kkk669/mxnet,leezu/mxnet,precedenceguo/mxnet,stefanhenneking/mxnet,ShownX/incubator-mxnet,smolix/incubator-mxnet,Prasad9/incubator-mxnet,Prasad9/incubator-mxnet,jermainewang/mxnet,sergeykolychev/mxnet,fullfanta/mxnet,zhreshold/mxnet,mbaijal/incubator-mxnet,reminisce/mxnet,EvanzzzZ/mxnet,ptrendx/mxnet,Northrend/mxnet,navrasio/mxnet,mbaijal/incubator-mxnet,fullfanta/mxnet,eric-haibin-lin/mxnet,rishita/mxnet,likelyzhao/mxnet,zhreshold/mxnet,Mega-DatA-Lab/mxnet,DickJC123/mxnet,piiswrong/mxnet,ForkedReposBak/mxnet,ZihengJiang/mxnet,indhub/mxnet,antoan2/incubator-mxnet,tlby/mxnet,leezu/mxnet,formath/mxnet,larroy/mxnet,precedenceguo/mxnet,luoyetx/mxnet,madjam/mxnet,solin319/incubator-mxnet,ZihengJiang/mxnet,fullfanta/mxnet,saurabh3949/mxnet,tornadomeet/mxnet,leezu/mxnet,xcgoner/dist-mxnet,jennyzhang0215/incubator-mxnet,hpi-xnor/BMXNet,precedenceguo/mxnet,precedenceguo/mxnet,xcgoner/dist-mxnet,indhub/mxnet,piiswrong/mxnet,wangyum/mxnet,kkk669/mxnet,pluskid/mxnet,wangyum/mxnet,ShownX/incubator-mxnet,solin319/incubator-mxnet,ykim362/mxnet,pluskid/mxnet,Mega-DatA-Lab/mxnet,ZihengJiang/mxnet,wangyum/mxnet,sergeykolychev/mxnet,luoyetx/mxnet,danithaca/mxnet,ShownX/incubator-mxnet,hesseltuinhof/mxnet,luoyetx/mxnet,mbaijal/incubator-mxnet,jermainewang/mxnet,hesseltuinhof/mxnet,fullfanta/mxnet,danithaca/mxnet,ykim362/mxnet,stefanhenneking/mxnet,fullfanta/mxnet,rishita/mxnet,vikingMei/mxnet,zhreshold/mxnet,crazy-cat/incubator-mxnet,TuSimple/mxnet,ykim362/mxnet,jennyzhang0215/incubator-mxnet,arank/mxnet,ZihengJiang/mxnet,weleen/mxnet,saurabh3949/mxnet,yuruofeifei/mxnet,Northrend/mxnet,nicklhy/mxnet,ShownX/incubator-mxnet,hpi-xnor/BMXNet,weleen/mxnet,vikingMei/mxnet,EvanzzzZ/mxnet,weleen/mxnet,TuSimple/mxnet,dmlc/mxnet,larroy/mxnet,tornadomeet/mxnet,lxn2/mxnet,TuSimple/mxnet,arank/mxnet,ZihengJiang/mxnet,Northrend/mxnet,tlby/mxnet,larroy/mxnet,leezu/mxnet,ZihengJiang/mxnet,piiswrong/mxnet,jiajiechen/mxnet,Prasad9/incubator-mxnet,antoan2/incubator-mxnet,thirdwing/mxnet,jamesliu/mxnet,hotpxl/mxnet,ptrendx/mxnet,saurabh3949/mxnet,antoan2/incubator-mxnet,EvanzzzZ/mxnet,nicklhy/mxnet,saurabh3949/mxnet,nicklhy/mxnet,dmlc/mxnet,szha/mxnet,crazy-cat/incubator-mxnet,ptrendx/mxnet,rishita/mxnet,saurabh3949/mxnet,coder-james/mxnet,dmlc/mxnet,EvanzzzZ/mxnet,rishita/mxnet,arikpoz/mxnet,Northrend/mxnet,ykim362/mxnet,sergeykolychev/mxnet,sxjscience/mxnet,formath/mxnet,smolix/incubator-mxnet,DR08/mxnet,indhub/mxnet,LinkHS/incubator-mxnet,crazy-cat/incubator-mxnet,sxjscience/mxnet,smolix/incubator-mxnet,jiajiechen/mxnet,ForkedReposBak/mxnet,LinkHS/incubator-mxnet,tornadomeet/mxnet,saurabh3949/mxnet,jiajiechen/mxnet,fullfanta/mxnet,jermainewang/mxnet,ptrendx/mxnet,dmlc/mxnet,navrasio/mxnet,DR08/mxnet,jermainewang/mxnet,xcgoner/dist-mxnet,likelyzhao/mxnet,coder-james/mxnet,nicklhy/mxnet,yuruofeifei/mxnet,ForkedReposBak/mxnet,hpi-xnor/BMXNet,danithaca/mxnet,rahul003/mxnet,yuruofeifei/mxnet,apaleyes/mxnet,LinkHS/incubator-mxnet,mbaijal/incubator-mxnet,arank/mxnet,Prasad9/incubator-mxnet,smolix/incubator-mxnet,Prasad9/incubator-mxnet,larroy/mxnet,ShownX/incubator-mxnet,jiajiechen/mxnet,hotpxl/mxnet,lxn2/mxnet,danithaca/mxnet,lxn2/mxnet,crazy-cat/incubator-mxnet,wangyum/mxnet,dmlc/mxnet,kkk669/mxnet,madjam/mxnet,EvanzzzZ/mxnet,danithaca/mxnet,hotpxl/mxnet,EvanzzzZ/mxnet,nicklhy/mxnet,zhreshold/mxnet,smolix/incubator-mxnet,lxn2/mxnet,kevinthesun/mxnet,szha/mxnet,vikingMei/mxnet,Prasad9/incubator-mxnet,smolix/incubator-mxnet,jiajiechen/mxnet,hesseltuinhof/mxnet,yajiedesign/mxnet,danithaca/mxnet,stefanhenneking/mxnet,reminisce/mxnet,jennyzhang0215/incubator-mxnet,larroy/mxnet,lxn2/mxnet,jamesliu/mxnet,DickJC123/mxnet,danithaca/mxnet,TuSimple/mxnet,gautamkmr/incubator-mxnet,jiajiechen/mxnet,piiswrong/mxnet,luoyetx/mxnet,luoyetx/mxnet,formath/mxnet,hesseltuinhof/mxnet,yajiedesign/mxnet,navrasio/mxnet,vikingMei/mxnet,kevinthesun/mxnet,xcgoner/dist-mxnet,jermainewang/mxnet,larroy/mxnet,ForkedReposBak/mxnet,coder-james/mxnet,DR08/mxnet,navrasio/mxnet,arank/mxnet,piiswrong/mxnet,weleen/mxnet,DR08/mxnet,luoyetx/mxnet,arank/mxnet,DR08/mxnet,Northrend/mxnet,gautamkmr/incubator-mxnet,antoan2/incubator-mxnet,saurabh3949/mxnet,navrasio/mxnet,CodingCat/mxnet,ZihengJiang/mxnet,Prasad9/incubator-mxnet,luoyetx/mxnet,rahul003/mxnet,stefanhenneking/mxnet,indhub/mxnet,gautamkmr/incubator-mxnet,Mega-DatA-Lab/mxnet,LinkHS/incubator-mxnet,thirdwing/mxnet,fullfanta/mxnet,arank/mxnet,ykim362/mxnet,solin319/incubator-mxnet,pluskid/mxnet,navrasio/mxnet,navrasio/mxnet,EvanzzzZ/mxnet,piiswrong/mxnet,vikingMei/mxnet,madjam/mxnet,pluskid/mxnet,ykim362/mxnet,arikpoz/mxnet,pluskid/mxnet,CodingCat/mxnet,kevinthesun/mxnet,ykim362/mxnet,reminisce/mxnet,Mega-DatA-Lab/mxnet,Ldpe2G/mxnet,tornadomeet/mxnet,CodingCat/mxnet,jennyzhang0215/incubator-mxnet,zhreshold/mxnet,likelyzhao/mxnet,antoan2/incubator-mxnet,jiajiechen/mxnet,solin319/incubator-mxnet,ptrendx/mxnet,yuruofeifei/mxnet,hpi-xnor/BMXNet,wangyum/mxnet,CodingCat/mxnet,eric-haibin-lin/mxnet,CodingCat/mxnet,ptrendx/mxnet,crazy-cat/incubator-mxnet,ForkedReposBak/mxnet,zhreshold/mxnet,jamesliu/mxnet,sergeykolychev/mxnet,likelyzhao/mxnet,jamesliu/mxnet,reminisce/mxnet,hpi-xnor/BMXNet,wangyum/mxnet,crazy-cat/incubator-mxnet,ForkedReposBak/mxnet,eric-haibin-lin/mxnet,szha/mxnet,Guneet-Dhillon/mxnet,antoan2/incubator-mxnet,ShownX/incubator-mxnet,sxjscience/mxnet,tornadomeet/mxnet,tlby/mxnet,arikpoz/mxnet,lxn2/mxnet,Guneet-Dhillon/mxnet,yajiedesign/mxnet,thirdwing/mxnet,TuSimple/mxnet,solin319/incubator-mxnet,pluskid/mxnet,vikingMei/mxnet,coder-james/mxnet,piiswrong/mxnet,xcgoner/dist-mxnet,navrasio/mxnet,eric-haibin-lin/mxnet,arank/mxnet,szha/mxnet,ykim362/mxnet,mbaijal/incubator-mxnet,zhreshold/mxnet,rahul003/mxnet,Mega-DatA-Lab/mxnet,likelyzhao/mxnet,tornadomeet/mxnet,gautamkmr/incubator-mxnet,LinkHS/incubator-mxnet,lxn2/mxnet,Northrend/mxnet,fullfanta/mxnet,sxjscience/mxnet,gautamkmr/incubator-mxnet,kkk669/mxnet,rahul003/mxnet,larroy/mxnet,eric-haibin-lin/mxnet,mbaijal/incubator-mxnet,sergeykolychev/mxnet,Northrend/mxnet,jermainewang/mxnet,xcgoner/dist-mxnet,yajiedesign/mxnet,TuSimple/mxnet,weleen/mxnet,rahul003/mxnet,kkk669/mxnet,tornadomeet/mxnet,larroy/mxnet,indhub/mxnet,tlby/mxnet,sergeykolychev/mxnet,thirdwing/mxnet,antoan2/incubator-mxnet,antoan2/incubator-mxnet,ptrendx/mxnet,ykim362/mxnet,dmlc/mxnet,vikingMei/mxnet,Mega-DatA-Lab/mxnet,kevinthesun/mxnet,jennyzhang0215/incubator-mxnet,precedenceguo/mxnet,TuSimple/mxnet,Ldpe2G/mxnet,jermainewang/mxnet,coder-james/mxnet,vikingMei/mxnet,hesseltuinhof/mxnet,ForkedReposBak/mxnet,reminisce/mxnet,hpi-xnor/BMXNet,yajiedesign/mxnet,pluskid/mxnet,Prasad9/incubator-mxnet,apache/incubator-mxnet,zhreshold/mxnet,piiswrong/mxnet,xcgoner/dist-mxnet,jamesliu/mxnet,arikpoz/mxnet,Ldpe2G/mxnet,Ldpe2G/mxnet,rahul003/mxnet,hotpxl/mxnet,Guneet-Dhillon/mxnet,saurabh3949/mxnet,arikpoz/mxnet,weleen/mxnet,apaleyes/mxnet,hpi-xnor/BMXNet,DickJC123/mxnet,formath/mxnet,danithaca/mxnet,LinkHS/incubator-mxnet,precedenceguo/mxnet,jennyzhang0215/incubator-mxnet,xcgoner/dist-mxnet,TuSimple/mxnet,rishita/mxnet,reminisce/mxnet,piiswrong/mxnet,sxjscience/mxnet,indhub/mxnet,arikpoz/mxnet,thirdwing/mxnet,stefanhenneking/mxnet,yuruofeifei/mxnet,stefanhenneking/mxnet,szha/mxnet,indhub/mxnet,weleen/mxnet,precedenceguo/mxnet,DR08/mxnet,indhub/mxnet,solin319/incubator-mxnet,yuruofeifei/mxnet,formath/mxnet,weleen/mxnet,hpi-xnor/BMXNet,crazy-cat/incubator-mxnet,apaleyes/mxnet,Mega-DatA-Lab/mxnet,likelyzhao/mxnet,formath/mxnet,kkk669/mxnet,rahul003/mxnet,szha/mxnet,yajiedesign/mxnet,eric-haibin-lin/mxnet,luoyetx/mxnet,leezu/mxnet,CodingCat/mxnet,fullfanta/mxnet,luoyetx/mxnet,formath/mxnet,ForkedReposBak/mxnet,precedenceguo/mxnet,ZihengJiang/mxnet,hotpxl/mxnet,yuruofeifei/mxnet,ptrendx/mxnet,arikpoz/mxnet,Ldpe2G/mxnet,apaleyes/mxnet,hesseltuinhof/mxnet,szha/mxnet,solin319/incubator-mxnet,solin319/incubator-mxnet,Northrend/mxnet,rishita/mxnet,tlby/mxnet,jamesliu/mxnet,smolix/incubator-mxnet,vikingMei/mxnet,kevinthesun/mxnet,xcgoner/dist-mxnet,Mega-DatA-Lab/mxnet,dmlc/mxnet,TuSimple/mxnet,DR08/mxnet,hotpxl/mxnet,Guneet-Dhillon/mxnet,Ldpe2G/mxnet,DR08/mxnet,apaleyes/mxnet,DR08/mxnet,jiajiechen/mxnet,yuruofeifei/mxnet,antoan2/incubator-mxnet,apache/incubator-mxnet,Guneet-Dhillon/mxnet,precedenceguo/mxnet,leezu/mxnet,Ldpe2G/mxnet,reminisce/mxnet,arikpoz/mxnet,hesseltuinhof/mxnet,mbaijal/incubator-mxnet,ShownX/incubator-mxnet,sxjscience/mxnet,tornadomeet/mxnet,mbaijal/incubator-mxnet,Ldpe2G/mxnet,hesseltuinhof/mxnet,Guneet-Dhillon/mxnet,jiajiechen/mxnet,rishita/mxnet,TuSimple/mxnet,EvanzzzZ/mxnet,nicklhy/mxnet,EvanzzzZ/mxnet,thirdwing/mxnet,madjam/mxnet,gautamkmr/incubator-mxnet,pluskid/mxnet,kevinthesun/mxnet,stefanhenneking/mxnet,madjam/mxnet,lxn2/mxnet,DickJC123/mxnet,CodingCat/mxnet,jermainewang/mxnet,leezu/mxnet