cleanup: delete unused code (function)
cleanup: delete unused code (function)

Signed-off-by: Fabio Kung <a5fcd572428ff6f4b84a691712d150785bd20793@gmail.com>

Shashwatsh/rkt,kinvolk/rkt,joshix/rkt,coreos/rkt,lucasallan/rkt,intelsdi-x/rkt,lucasallan/rkt,kinvolk/rkt,Shashwatsh/rkt,coreos/rkt,rkt/rkt,Shashwatsh/rkt,joshix/rkt,rkt/rkt,ybubnov/rkt,alban/rkt,sstabellini/rkt,joshix/rkt,rkt/rkt,alban/rkt,ybubnov/rkt,rkt/rkt,sstabellini/rkt,joshix/rkt,lucasallan/rkt,sstabellini/rkt,coreos/rkt,ybubnov/rkt,lucasallan/rkt,kinvolk/rkt,intelsdi-x/rkt,alban/rkt,intelsdi-x/rkt,kinvolk/rkt