revert acc changes (#9731)
revert acc changes (#9731)

* Revert "avoid per-batch blocking in metric (#9636)"

This reverts commit 3fe694e7b1ed7fa6a2dcfeddeac44c14ab77b015.

* Revert "proper flatten in acc (#9619)"

This reverts commit ed823b2e187eb859d9475eb651465edf714c6c5f.

* Revert "use nd for accuracy calculation (#9583)"

This reverts commit f5f1b91ff972ad70e9131d3cd1d7408ddddb7684.

* keep doc change

ptrendx/mxnet,yajiedesign/mxnet,indhub/mxnet,dmlc/mxnet,LinkHS/incubator-mxnet,LinkHS/incubator-mxnet,leezu/mxnet,apache/incubator-mxnet,mbaijal/incubator-mxnet,ForkedReposBak/mxnet,szha/mxnet,reminisce/mxnet,zhreshold/mxnet,jiajiechen/mxnet,TuSimple/mxnet,szha/mxnet,indhub/mxnet,szha/mxnet,sxjscience/mxnet,mbaijal/incubator-mxnet,LinkHS/incubator-mxnet,sxjscience/mxnet,CodingCat/mxnet,jiajiechen/mxnet,rahul003/mxnet,reminisce/mxnet,reminisce/mxnet,tornadomeet/mxnet,reminisce/mxnet,ptrendx/mxnet,reminisce/mxnet,TuSimple/mxnet,navrasio/mxnet,tlby/mxnet,dmlc/mxnet,rahul003/mxnet,TuSimple/mxnet,leezu/mxnet,sxjscience/mxnet,fullfanta/mxnet,fullfanta/mxnet,precedenceguo/mxnet,dmlc/mxnet,rahul003/mxnet,TuSimple/mxnet,eric-haibin-lin/mxnet,fullfanta/mxnet,dmlc/mxnet,rahul003/mxnet,eric-haibin-lin/mxnet,precedenceguo/mxnet,CodingCat/mxnet,zhreshold/mxnet,fullfanta/mxnet,zhreshold/mxnet,tlby/mxnet,LinkHS/incubator-mxnet,eric-haibin-lin/mxnet,dmlc/mxnet,indhub/mxnet,mbaijal/incubator-mxnet,ptrendx/mxnet,precedenceguo/mxnet,zhreshold/mxnet,jiajiechen/mxnet,sxjscience/mxnet,precedenceguo/mxnet,navrasio/mxnet,jamesliu/mxnet,larroy/mxnet,mbaijal/incubator-mxnet,rahul003/mxnet,dmlc/mxnet,leezu/mxnet,jamesliu/mxnet,luoyetx/mxnet,jamesliu/mxnet,yajiedesign/mxnet,larroy/mxnet,tornadomeet/mxnet,CodingCat/mxnet,TuSimple/mxnet,precedenceguo/mxnet,navrasio/mxnet,mbaijal/incubator-mxnet,mbaijal/incubator-mxnet,precedenceguo/mxnet,jamesliu/mxnet,tornadomeet/mxnet,szha/mxnet,TuSimple/mxnet,yajiedesign/mxnet,DickJC123/mxnet,eric-haibin-lin/mxnet,ForkedReposBak/mxnet,sxjscience/mxnet,TuSimple/mxnet,LinkHS/incubator-mxnet,tlby/mxnet,larroy/mxnet,TuSimple/mxnet,jiajiechen/mxnet,eric-haibin-lin/mxnet,jamesliu/mxnet,tlby/mxnet,ptrendx/mxnet,jamesliu/mxnet,ForkedReposBak/mxnet,tornadomeet/mxnet,fullfanta/mxnet,ForkedReposBak/mxnet,ForkedReposBak/mxnet,fullfanta/mxnet,apache/incubator-mxnet,szha/mxnet,eric-haibin-lin/mxnet,yajiedesign/mxnet,ptrendx/mxnet,reminisce/mxnet,sxjscience/mxnet,reminisce/mxnet,reminisce/mxnet,luoyetx/mxnet,yajiedesign/mxnet,TuSimple/mxnet,DickJC123/mxnet,CodingCat/mxnet,CodingCat/mxnet,LinkHS/incubator-mxnet,dmlc/mxnet,rahul003/mxnet,navrasio/mxnet,navrasio/mxnet,CodingCat/mxnet,tlby/mxnet,larroy/mxnet,luoyetx/mxnet,precedenceguo/mxnet,LinkHS/incubator-mxnet,leezu/mxnet,tlby/mxnet,indhub/mxnet,luoyetx/mxnet,larroy/mxnet,tlby/mxnet,larroy/mxnet,eric-haibin-lin/mxnet,DickJC123/mxnet,navrasio/mxnet,navrasio/mxnet,luoyetx/mxnet,zhreshold/mxnet,fullfanta/mxnet,mbaijal/incubator-mxnet,luoyetx/mxnet,apache/incubator-mxnet,ptrendx/mxnet,CodingCat/mxnet,jiajiechen/mxnet,indhub/mxnet,leezu/mxnet,indhub/mxnet,szha/mxnet,eric-haibin-lin/mxnet,apache/incubator-mxnet,ForkedReposBak/mxnet,precedenceguo/mxnet,mbaijal/incubator-mxnet,ptrendx/mxnet,eric-haibin-lin/mxnet,rahul003/mxnet,jiajiechen/mxnet,tlby/mxnet,ForkedReposBak/mxnet,reminisce/mxnet,LinkHS/incubator-mxnet,sxjscience/mxnet,yajiedesign/mxnet,jiajiechen/mxnet,sxjscience/mxnet,leezu/mxnet,szha/mxnet,ptrendx/mxnet,ForkedReposBak/mxnet,yajiedesign/mxnet,leezu/mxnet,zhreshold/mxnet,tornadomeet/mxnet,tlby/mxnet,szha/mxnet,sxjscience/mxnet,zhreshold/mxnet,navrasio/mxnet,tornadomeet/mxnet,ptrendx/mxnet,zhreshold/mxnet,leezu/mxnet,LinkHS/incubator-mxnet,tornadomeet/mxnet,larroy/mxnet,precedenceguo/mxnet,indhub/mxnet,luoyetx/mxnet,fullfanta/mxnet,tornadomeet/mxnet,dmlc/mxnet,jiajiechen/mxnet,larroy/mxnet,yajiedesign/mxnet,leezu/mxnet,luoyetx/mxnet,ForkedReposBak/mxnet,szha/mxnet,luoyetx/mxnet,zhreshold/mxnet,yajiedesign/mxnet,tlby/mxnet,fullfanta/mxnet,larroy/mxnet,indhub/mxnet,TuSimple/mxnet,CodingCat/mxnet,mbaijal/incubator-mxnet,CodingCat/mxnet,jamesliu/mxnet,navrasio/mxnet,DickJC123/mxnet,jiajiechen/mxnet,tornadomeet/mxnet,ptrendx/mxnet,indhub/mxnet,reminisce/mxnet,rahul003/mxnet,rahul003/mxnet,jamesliu/mxnet,dmlc/mxnet,jamesliu/mxnet