Remove warnings about not used variable when compiling with CUDA 8 (#7769)
Remove warnings about not used variable when compiling with CUDA 8 (#7769)

* Remove warnings about not used variable with CUDA 8

* Restart CI?

* Update depthwise_convolution_tf.cuh

* Remove unnecessary macro

* Restart CI

vikingMei/mxnet,Prasad9/incubator-mxnet,crazy-cat/incubator-mxnet,sergeykolychev/mxnet,piiswrong/mxnet,wangyum/mxnet,tornadomeet/mxnet,leezu/mxnet,TuSimple/mxnet,ZihengJiang/mxnet,jiajiechen/mxnet,jermainewang/mxnet,solin319/incubator-mxnet,jennyzhang0215/incubator-mxnet,vikingMei/mxnet,weleen/mxnet,ShownX/incubator-mxnet,LinkHS/incubator-mxnet,madjam/mxnet,vikingMei/mxnet,weleen/mxnet,kevinthesun/mxnet,tlby/mxnet,sxjscience/mxnet,tlby/mxnet,vikingMei/mxnet,formath/mxnet,jiajiechen/mxnet,Northrend/mxnet,mbaijal/incubator-mxnet,jamesliu/mxnet,madjam/mxnet,wangyum/mxnet,eric-haibin-lin/mxnet,Mega-DatA-Lab/mxnet,jiajiechen/mxnet,zhreshold/mxnet,sxjscience/mxnet,smolix/incubator-mxnet,luoyetx/mxnet,ptrendx/mxnet,mbaijal/incubator-mxnet,indhub/mxnet,kevinthesun/mxnet,reminisce/mxnet,yuruofeifei/mxnet,Prasad9/incubator-mxnet,szha/mxnet,ForkedReposBak/mxnet,ykim362/mxnet,larroy/mxnet,jiajiechen/mxnet,yuruofeifei/mxnet,sergeykolychev/mxnet,indhub/mxnet,zhreshold/mxnet,eric-haibin-lin/mxnet,kkk669/mxnet,weleen/mxnet,apache/incubator-mxnet,ShownX/incubator-mxnet,jermainewang/mxnet,indhub/mxnet,kkk669/mxnet,ForkedReposBak/mxnet,vikingMei/mxnet,reminisce/mxnet,tlby/mxnet,CodingCat/mxnet,ptrendx/mxnet,madjam/mxnet,jennyzhang0215/incubator-mxnet,Prasad9/incubator-mxnet,kkk669/mxnet,formath/mxnet,szha/mxnet,Northrend/mxnet,antoan2/incubator-mxnet,antoan2/incubator-mxnet,yuruofeifei/mxnet,antoan2/incubator-mxnet,yuruofeifei/mxnet,kkk669/mxnet,formath/mxnet,jermainewang/mxnet,szha/mxnet,Prasad9/incubator-mxnet,tlby/mxnet,Mega-DatA-Lab/mxnet,jamesliu/mxnet,wangyum/mxnet,sxjscience/mxnet,crazy-cat/incubator-mxnet,apache/incubator-mxnet,navrasio/mxnet,ShownX/incubator-mxnet,jennyzhang0215/incubator-mxnet,formath/mxnet,sergeykolychev/mxnet,kkk669/mxnet,sergeykolychev/mxnet,crazy-cat/incubator-mxnet,reminisce/mxnet,fullfanta/mxnet,saurabh3949/mxnet,jamesliu/mxnet,mbaijal/incubator-mxnet,solin319/incubator-mxnet,madjam/mxnet,larroy/mxnet,leezu/mxnet,ptrendx/mxnet,reminisce/mxnet,LinkHS/incubator-mxnet,saurabh3949/mxnet,saurabh3949/mxnet,crazy-cat/incubator-mxnet,sergeykolychev/mxnet,antoan2/incubator-mxnet,LinkHS/incubator-mxnet,yajiedesign/mxnet,vikingMei/mxnet,formath/mxnet,dmlc/mxnet,piiswrong/mxnet,jamesliu/mxnet,weleen/mxnet,Prasad9/incubator-mxnet,Prasad9/incubator-mxnet,ShownX/incubator-mxnet,ykim362/mxnet,szha/mxnet,sxjscience/mxnet,madjam/mxnet,ykim362/mxnet,sxjscience/mxnet,szha/mxnet,vikingMei/mxnet,ZihengJiang/mxnet,Mega-DatA-Lab/mxnet,wangyum/mxnet,rahul003/mxnet,hpi-xnor/BMXNet,dmlc/mxnet,kevinthesun/mxnet,Prasad9/incubator-mxnet,saurabh3949/mxnet,precedenceguo/mxnet,reminisce/mxnet,rahul003/mxnet,navrasio/mxnet,reminisce/mxnet,Northrend/mxnet,formath/mxnet,wangyum/mxnet,wangyum/mxnet,ForkedReposBak/mxnet,luoyetx/mxnet,TuSimple/mxnet,jamesliu/mxnet,formath/mxnet,dmlc/mxnet,luoyetx/mxnet,yuruofeifei/mxnet,sergeykolychev/mxnet,ZihengJiang/mxnet,reminisce/mxnet,leezu/mxnet,ZihengJiang/mxnet,madjam/mxnet,TuSimple/mxnet,sergeykolychev/mxnet,eric-haibin-lin/mxnet,piiswrong/mxnet,yajiedesign/mxnet,dmlc/mxnet,madjam/mxnet,smolix/incubator-mxnet,yajiedesign/mxnet,jermainewang/mxnet,ykim362/mxnet,smolix/incubator-mxnet,saurabh3949/mxnet,solin319/incubator-mxnet,dmlc/mxnet,antoan2/incubator-mxnet,hpi-xnor/BMXNet,yajiedesign/mxnet,CodingCat/mxnet,fullfanta/mxnet,sxjscience/mxnet,eric-haibin-lin/mxnet,Northrend/mxnet,tornadomeet/mxnet,smolix/incubator-mxnet,kkk669/mxnet,Northrend/mxnet,leezu/mxnet,jermainewang/mxnet,CodingCat/mxnet,crazy-cat/incubator-mxnet,jamesliu/mxnet,CodingCat/mxnet,jiajiechen/mxnet,Mega-DatA-Lab/mxnet,jermainewang/mxnet,larroy/mxnet,TuSimple/mxnet,sxjscience/mxnet,hpi-xnor/BMXNet,ptrendx/mxnet,luoyetx/mxnet,zhreshold/mxnet,fullfanta/mxnet,sergeykolychev/mxnet,reminisce/mxnet,yuruofeifei/mxnet,CodingCat/mxnet,eric-haibin-lin/mxnet,mbaijal/incubator-mxnet,antoan2/incubator-mxnet,jiajiechen/mxnet,piiswrong/mxnet,tornadomeet/mxnet,Mega-DatA-Lab/mxnet,fullfanta/mxnet,zhreshold/mxnet,jiajiechen/mxnet,eric-haibin-lin/mxnet,sergeykolychev/mxnet,weleen/mxnet,jamesliu/mxnet,rahul003/mxnet,tlby/mxnet,jermainewang/mxnet,jennyzhang0215/incubator-mxnet,weleen/mxnet,precedenceguo/mxnet,ForkedReposBak/mxnet,madjam/mxnet,kkk669/mxnet,wangyum/mxnet,ptrendx/mxnet,dmlc/mxnet,ShownX/incubator-mxnet,precedenceguo/mxnet,tlby/mxnet,LinkHS/incubator-mxnet,dmlc/mxnet,apache/incubator-mxnet,navrasio/mxnet,saurabh3949/mxnet,formath/mxnet,ptrendx/mxnet,piiswrong/mxnet,LinkHS/incubator-mxnet,kkk669/mxnet,eric-haibin-lin/mxnet,fullfanta/mxnet,TuSimple/mxnet,zhreshold/mxnet,piiswrong/mxnet,smolix/incubator-mxnet,jermainewang/mxnet,hpi-xnor/BMXNet,ForkedReposBak/mxnet,Prasad9/incubator-mxnet,rahul003/mxnet,indhub/mxnet,solin319/incubator-mxnet,wangyum/mxnet,luoyetx/mxnet,tornadomeet/mxnet,jermainewang/mxnet,jamesliu/mxnet,precedenceguo/mxnet,ptrendx/mxnet,yajiedesign/mxnet,ykim362/mxnet,leezu/mxnet,Mega-DatA-Lab/mxnet,precedenceguo/mxnet,larroy/mxnet,rahul003/mxnet,ykim362/mxnet,ZihengJiang/mxnet,Mega-DatA-Lab/mxnet,jennyzhang0215/incubator-mxnet,navrasio/mxnet,hpi-xnor/BMXNet,larroy/mxnet,madjam/mxnet,Mega-DatA-Lab/mxnet,ForkedReposBak/mxnet,ForkedReposBak/mxnet,yajiedesign/mxnet,ptrendx/mxnet,kevinthesun/mxnet,zhreshold/mxnet,solin319/incubator-mxnet,Northrend/mxnet,navrasio/mxnet,szha/mxnet,ptrendx/mxnet,leezu/mxnet,tlby/mxnet,DickJC123/mxnet,Northrend/mxnet,antoan2/incubator-mxnet,zhreshold/mxnet,tlby/mxnet,tornadomeet/mxnet,ForkedReposBak/mxnet,larroy/mxnet,tlby/mxnet,ZihengJiang/mxnet,kevinthesun/mxnet,wangyum/mxnet,tornadomeet/mxnet,tornadomeet/mxnet,TuSimple/mxnet,fullfanta/mxnet,Northrend/mxnet,ZihengJiang/mxnet,luoyetx/mxnet,smolix/incubator-mxnet,jennyzhang0215/incubator-mxnet,mbaijal/incubator-mxnet,yuruofeifei/mxnet,szha/mxnet,reminisce/mxnet,dmlc/mxnet,fullfanta/mxnet,hpi-xnor/BMXNet,CodingCat/mxnet,ShownX/incubator-mxnet,LinkHS/incubator-mxnet,hpi-xnor/BMXNet,zhreshold/mxnet,antoan2/incubator-mxnet,navrasio/mxnet,CodingCat/mxnet,vikingMei/mxnet,LinkHS/incubator-mxnet,TuSimple/mxnet,yajiedesign/mxnet,indhub/mxnet,mbaijal/incubator-mxnet,saurabh3949/mxnet,crazy-cat/incubator-mxnet,Prasad9/incubator-mxnet,kevinthesun/mxnet,weleen/mxnet,CodingCat/mxnet,TuSimple/mxnet,rahul003/mxnet,saurabh3949/mxnet,ptrendx/mxnet,indhub/mxnet,leezu/mxnet,luoyetx/mxnet,precedenceguo/mxnet,precedenceguo/mxnet,hpi-xnor/BMXNet,ForkedReposBak/mxnet,Mega-DatA-Lab/mxnet,piiswrong/mxnet,rahul003/mxnet,rahul003/mxnet,szha/mxnet,hpi-xnor/BMXNet,ykim362/mxnet,formath/mxnet,kkk669/mxnet,smolix/incubator-mxnet,solin319/incubator-mxnet,navrasio/mxnet,mbaijal/incubator-mxnet,jennyzhang0215/incubator-mxnet,sxjscience/mxnet,solin319/incubator-mxnet,crazy-cat/incubator-mxnet,jennyzhang0215/incubator-mxnet,mbaijal/incubator-mxnet,yajiedesign/mxnet,tornadomeet/mxnet,LinkHS/incubator-mxnet,weleen/mxnet,fullfanta/mxnet,Northrend/mxnet,DickJC123/mxnet,smolix/incubator-mxnet,szha/mxnet,rahul003/mxnet,yuruofeifei/mxnet,jennyzhang0215/incubator-mxnet,ShownX/incubator-mxnet,ShownX/incubator-mxnet,tornadomeet/mxnet,crazy-cat/incubator-mxnet,TuSimple/mxnet,crazy-cat/incubator-mxnet,ykim362/mxnet,navrasio/mxnet,larroy/mxnet,DickJC123/mxnet,jamesliu/mxnet,eric-haibin-lin/mxnet,smolix/incubator-mxnet,antoan2/incubator-mxnet,mbaijal/incubator-mxnet,yuruofeifei/mxnet,solin319/incubator-mxnet,solin319/incubator-mxnet,larroy/mxnet,apache/incubator-mxnet,indhub/mxnet,saurabh3949/mxnet,indhub/mxnet,eric-haibin-lin/mxnet,piiswrong/mxnet,TuSimple/mxnet,zhreshold/mxnet,ShownX/incubator-mxnet,leezu/mxnet,larroy/mxnet,kevinthesun/mxnet,reminisce/mxnet,luoyetx/mxnet,vikingMei/mxnet,dmlc/mxnet,ykim362/mxnet,ZihengJiang/mxnet,kevinthesun/mxnet,sxjscience/mxnet,leezu/mxnet,precedenceguo/mxnet,LinkHS/incubator-mxnet,weleen/mxnet,fullfanta/mxnet,kevinthesun/mxnet,DickJC123/mxnet,jiajiechen/mxnet,CodingCat/mxnet,yajiedesign/mxnet,piiswrong/mxnet,precedenceguo/mxnet,luoyetx/mxnet,indhub/mxnet,navrasio/mxnet,ZihengJiang/mxnet,tlby/mxnet,jiajiechen/mxnet