fix "unused" marker in utility code
fix "unused" marker in utility code

fperez/cython,mrGeen/cython,ChristopherHogan/cython,hickford/cython,mcanthony/cython,dahebolangkuan/cython,mcanthony/cython,hickford/cython,cython/cython,scoder/cython,da-woods/cython,JelleZijlstra/cython,scoder/cython,marscher/cython,achernet/cython,hickford/cython,encukou/cython,mrGeen/cython,fperez/cython,roxyboy/cython,c-blake/cython,achernet/cython,dahebolangkuan/cython,cython/cython,JelleZijlstra/cython,andreasvc/cython,roxyboy/cython,cython/cython,dahebolangkuan/cython,hhsprings/cython,c-blake/cython,encukou/cython,ChristopherHogan/cython,mcanthony/cython,fperez/cython,ChristopherHogan/cython,encukou/cython,hhsprings/cython,roxyboy/cython,da-woods/cython,achernet/cython,hhsprings/cython,roxyboy/cython,acrispin/cython,achernet/cython,marscher/cython,dahebolangkuan/cython,mcanthony/cython,mrGeen/cython,andreasvc/cython,mrGeen/cython,fabianrost84/cython,mcanthony/cython,encukou/cython,madjar/cython,fabianrost84/cython,marscher/cython,hhsprings/cython,slonik-az/cython,fperez/cython,slonik-az/cython,slonik-az/cython,dahebolangkuan/cython,c-blake/cython,c-blake/cython,c-blake/cython,marscher/cython,JelleZijlstra/cython,da-woods/cython,andreasvc/cython,slonik-az/cython,fabianrost84/cython,fperez/cython,encukou/cython,andreasvc/cython,marscher/cython,JelleZijlstra/cython,madjar/cython,andreasvc/cython,mrGeen/cython,fabianrost84/cython,hhsprings/cython,achernet/cython,scoder/cython,hickford/cython,acrispin/cython,acrispin/cython,da-woods/cython,roxyboy/cython,hickford/cython,madjar/cython,cython/cython,JelleZijlstra/cython,acrispin/cython,slonik-az/cython,fabianrost84/cython,scoder/cython,madjar/cython,madjar/cython,acrispin/cython