Removed a bunch of comments
Removed a bunch of comments


Former-commit-id: 556732893d7ba826bb17ddf2dca901a47fc7f7e5
clab/dynet,danielhers/dynet,shuheik/dynet,clab/cnn,xunzhang/dynet,chunyang-wen/dynet,xunzhang/dynet,clab/dynet,xunzhang/dynet,chunyang-wen/dynet,danielhers/dynet,shuheik/dynet,clab/dynet,danielhers/dynet,danielhers/dynet,xunzhang/dynet,shuheik/dynet,shuheik/dynet,shuheik/dynet,clab/cnn,clab/dynet,shuheik/dynet,clab/dynet,chunyang-wen/dynet,clab/dynet,shuheik/dynet,danielhers/dynet,chunyang-wen/dynet,clab/cnn,danielhers/dynet,danielhers/dynet,clab/dynet