Remove use of tree class from chainer test
Remove use of tree class from chainer test

eddiemonroe/opencog,kim135797531/opencog,UIKit0/atomspace,misgeatgit/opencog,shujingke/opencog,Selameab/atomspace,MarcosPividori/atomspace,Allend575/opencog,ceefour/opencog,prateeksaxena2809/opencog,inflector/opencog,printedheart/opencog,virneo/opencog,rodsol/atomspace,zhaozengguang/opencog,anitzkin/opencog,kinoc/opencog,sanuj/opencog,yantrabuddhi/atomspace,roselleebarle04/opencog,cosmoharrigan/opencog,printedheart/atomspace,andre-senna/opencog,ruiting/opencog,ruiting/opencog,tim777z/opencog,Allend575/opencog,ArvinPan/atomspace,rTreutlein/atomspace,gavrieltal/opencog,sumitsourabh/opencog,misgeatgit/atomspace,kim135797531/opencog,AmeBel/opencog,zhaozengguang/opencog,TheNameIsNigel/opencog,andre-senna/opencog,kinoc/opencog,misgeatgit/atomspace,sanuj/opencog,AmeBel/atomspace,rodsol/opencog,gaapt/opencog,rodsol/atomspace,cosmoharrigan/opencog,eddiemonroe/atomspace,kinoc/opencog,printedheart/opencog,yantrabuddhi/opencog,TheNameIsNigel/opencog,ArvinPan/opencog,yantrabuddhi/atomspace,ruiting/opencog,inflector/atomspace,yantrabuddhi/opencog,eddiemonroe/opencog,printedheart/opencog,AmeBel/opencog,virneo/atomspace,yantrabuddhi/atomspace,Selameab/opencog,kinoc/opencog,ceefour/atomspace,rohit12/atomspace,gaapt/opencog,williampma/atomspace,gaapt/opencog,misgeatgit/opencog,gavrieltal/opencog,andre-senna/opencog,yantrabuddhi/atomspace,printedheart/opencog,virneo/opencog,kinoc/opencog,eddiemonroe/opencog,sumitsourabh/opencog,yantrabuddhi/atomspace,iAMr00t/opencog,UIKit0/atomspace,iAMr00t/opencog,inflector/opencog,ceefour/opencog,prateeksaxena2809/opencog,misgeatgit/atomspace,anitzkin/opencog,anitzkin/opencog,virneo/atomspace,Selameab/atomspace,misgeatgit/opencog,TheNameIsNigel/opencog,jswiergo/atomspace,Tiggels/opencog,rohit12/atomspace,roselleebarle04/opencog,rodsol/atomspace,virneo/opencog,prateeksaxena2809/opencog,kim135797531/opencog,rohit12/opencog,virneo/atomspace,misgeatgit/opencog,roselleebarle04/opencog,rodsol/opencog,shujingke/opencog,misgeatgit/atomspace,ruiting/opencog,jlegendary/opencog,williampma/opencog,sanuj/opencog,rohit12/opencog,ArvinPan/opencog,eddiemonroe/atomspace,sanuj/opencog,tim777z/opencog,kim135797531/opencog,jlegendary/opencog,sanuj/opencog,inflector/opencog,andre-senna/opencog,jswiergo/atomspace,Selameab/atomspace,shujingke/opencog,prateeksaxena2809/opencog,UIKit0/atomspace,prateeksaxena2809/opencog,misgeatgit/opencog,MarcosPividori/atomspace,eddiemonroe/opencog,misgeatgit/atomspace,virneo/atomspace,Allend575/opencog,Allend575/opencog,AmeBel/opencog,printedheart/atomspace,eddiemonroe/atomspace,ArvinPan/atomspace,sumitsourabh/opencog,cosmoharrigan/opencog,sumitsourabh/opencog,inflector/atomspace,Tiggels/opencog,yantrabuddhi/opencog,jlegendary/opencog,TheNameIsNigel/opencog,cosmoharrigan/opencog,misgeatgit/opencog,shujingke/opencog,yantrabuddhi/opencog,eddiemonroe/opencog,inflector/atomspace,eddiemonroe/opencog,gaapt/opencog,gaapt/opencog,cosmoharrigan/atomspace,rohit12/opencog,gavrieltal/opencog,virneo/opencog,eddiemonroe/atomspace,printedheart/atomspace,Selameab/opencog,gavrieltal/opencog,AmeBel/atomspace,Tiggels/opencog,jswiergo/atomspace,ArvinPan/opencog,sumitsourabh/opencog,rohit12/atomspace,ArvinPan/opencog,AmeBel/opencog,ceefour/opencog,ArvinPan/atomspace,gaapt/opencog,cosmoharrigan/atomspace,kinoc/opencog,cosmoharrigan/opencog,rTreutlein/atomspace,Tiggels/opencog,anitzkin/opencog,jswiergo/atomspace,AmeBel/opencog,shujingke/opencog,williampma/opencog,cosmoharrigan/atomspace,zhaozengguang/opencog,gavrieltal/opencog,andre-senna/opencog,williampma/atomspace,ceefour/opencog,rohit12/atomspace,prateeksaxena2809/opencog,inflector/opencog,UIKit0/atomspace,gavrieltal/opencog,ceefour/opencog,anitzkin/opencog,AmeBel/opencog,inflector/opencog,virneo/opencog,inflector/atomspace,ArvinPan/opencog,ruiting/opencog,iAMr00t/opencog,MarcosPividori/atomspace,iAMr00t/opencog,AmeBel/atomspace,sanuj/opencog,andre-senna/opencog,printedheart/opencog,Selameab/opencog,gavrieltal/opencog,prateeksaxena2809/opencog,Selameab/atomspace,kim135797531/opencog,TheNameIsNigel/opencog,tim777z/opencog,williampma/atomspace,Allend575/opencog,TheNameIsNigel/opencog,tim777z/opencog,inflector/opencog,iAMr00t/opencog,Selameab/opencog,rTreutlein/atomspace,tim777z/opencog,eddiemonroe/opencog,Tiggels/opencog,ArvinPan/opencog,cosmoharrigan/opencog,williampma/opencog,inflector/opencog,ceefour/atomspace,roselleebarle04/opencog,AmeBel/atomspace,rodsol/atomspace,jlegendary/opencog,jlegendary/opencog,cosmoharrigan/atomspace,zhaozengguang/opencog,rohit12/opencog,virneo/opencog,Tiggels/opencog,ArvinPan/atomspace,rTreutlein/atomspace,kinoc/opencog,yantrabuddhi/opencog,rohit12/opencog,kim135797531/opencog,zhaozengguang/opencog,inflector/atomspace,ruiting/opencog,Allend575/opencog,jlegendary/opencog,rodsol/opencog,misgeatgit/opencog,yantrabuddhi/opencog,rTreutlein/atomspace,inflector/opencog,williampma/opencog,williampma/atomspace,MarcosPividori/atomspace,roselleebarle04/opencog,zhaozengguang/opencog,misgeatgit/opencog,anitzkin/opencog,rohit12/opencog,ceefour/atomspace,tim777z/opencog,virneo/opencog,ceefour/opencog,sumitsourabh/opencog,AmeBel/opencog,shujingke/opencog,roselleebarle04/opencog,sumitsourabh/opencog,Allend575/opencog,Selameab/opencog,iAMr00t/opencog,jlegendary/opencog,williampma/opencog,ceefour/atomspace,printedheart/opencog,ruiting/opencog,anitzkin/opencog,roselleebarle04/opencog,kim135797531/opencog,ceefour/opencog,eddiemonroe/atomspace,printedheart/atomspace,AmeBel/atomspace,rodsol/opencog,rodsol/opencog,yantrabuddhi/opencog,shujingke/opencog,andre-senna/opencog,williampma/opencog,misgeatgit/opencog,gaapt/opencog,Selameab/opencog,rodsol/opencog