remove unused eq function, reorganize a bit and add some comments
remove unused eq function, reorganize a bit and add some comments

kgrvamsi/goship,kgrvamsi/goship,kgrvamsi/goship,gengo/goship,gengo/goship,gengo/goship,cazacugmihai/goship,cazacugmihai/goship,cazacugmihai/goship