remove unused imports in test
remove unused imports in test

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