Remove call to deprecated method
Remove call to deprecated method

Summary:
AppleDescriptions#convertToFlatCxxHeaders ends up just calling
getFileName() on the Path it resolves, so relative will do just fine.

Test Plan: CI

Reviewed By: plamenko

fbshipit-source-id: 00de411

vschs007/buck,darkforestzero/buck,zhan-xiong/buck,daedric/buck,daedric/buck,grumpyjames/buck,shs96c/buck,ilya-klyuchnikov/buck,dsyang/buck,Addepar/buck,romanoid/buck,dsyang/buck,SeleniumHQ/buck,LegNeato/buck,daedric/buck,zhan-xiong/buck,vschs007/buck,shybovycha/buck,JoelMarcey/buck,dsyang/buck,marcinkwiatkowski/buck,SeleniumHQ/buck,SeleniumHQ/buck,sdwilsh/buck,dsyang/buck,romanoid/buck,shybovycha/buck,sdwilsh/buck,SeleniumHQ/buck,clonetwin26/buck,clonetwin26/buck,zpao/buck,robbertvanginkel/buck,davido/buck,zhan-xiong/buck,LegNeato/buck,LegNeato/buck,kageiit/buck,k21/buck,grumpyjames/buck,zhan-xiong/buck,sdwilsh/buck,vschs007/buck,sdwilsh/buck,Addepar/buck,kageiit/buck,daedric/buck,marcinkwiatkowski/buck,vschs007/buck,shybovycha/buck,sdwilsh/buck,SeleniumHQ/buck,brettwooldridge/buck,grumpyjames/buck,romanoid/buck,JoelMarcey/buck,darkforestzero/buck,grumpyjames/buck,robbertvanginkel/buck,davido/buck,SeleniumHQ/buck,nguyentruongtho/buck,dsyang/buck,brettwooldridge/buck,rmaz/buck,zpao/buck,shybovycha/buck,robbertvanginkel/buck,sdwilsh/buck,LegNeato/buck,facebook/buck,clonetwin26/buck,romanoid/buck,robbertvanginkel/buck,zhan-xiong/buck,daedric/buck,vschs007/buck,facebook/buck,shybovycha/buck,clonetwin26/buck,k21/buck,rmaz/buck,zpao/buck,rmaz/buck,zhan-xiong/buck,brettwooldridge/buck,kageiit/buck,rmaz/buck,shybovycha/buck,rmaz/buck,LegNeato/buck,sdwilsh/buck,shs96c/buck,rmaz/buck,LegNeato/buck,darkforestzero/buck,k21/buck,brettwooldridge/buck,clonetwin26/buck,LegNeato/buck,zpao/buck,Addepar/buck,marcinkwiatkowski/buck,vschs007/buck,daedric/buck,ilya-klyuchnikov/buck,SeleniumHQ/buck,davido/buck,nguyentruongtho/buck,marcinkwiatkowski/buck,dsyang/buck,sdwilsh/buck,rmaz/buck,dsyang/buck,rmaz/buck,clonetwin26/buck,vschs007/buck,brettwooldridge/buck,darkforestzero/buck,brettwooldridge/buck,ilya-klyuchnikov/buck,SeleniumHQ/buck,shybovycha/buck,LegNeato/buck,clonetwin26/buck,brettwooldridge/buck,k21/buck,clonetwin26/buck,romanoid/buck,ilya-klyuchnikov/buck,Addepar/buck,kageiit/buck,brettwooldridge/buck,Addepar/buck,nguyentruongtho/buck,vschs007/buck,Addepar/buck,shybovycha/buck,ilya-klyuchnikov/buck,zhan-xiong/buck,marcinkwiatkowski/buck,Addepar/buck,shs96c/buck,rmaz/buck,romanoid/buck,shs96c/buck,shs96c/buck,darkforestzero/buck,zhan-xiong/buck,JoelMarcey/buck,nguyentruongtho/buck,davido/buck,zhan-xiong/buck,SeleniumHQ/buck,marcinkwiatkowski/buck,daedric/buck,LegNeato/buck,JoelMarcey/buck,LegNeato/buck,robbertvanginkel/buck,davido/buck,shybovycha/buck,nguyentruongtho/buck,k21/buck,nguyentruongtho/buck,JoelMarcey/buck,Addepar/buck,daedric/buck,rmaz/buck,zhan-xiong/buck,SeleniumHQ/buck,ilya-klyuchnikov/buck,JoelMarcey/buck,robbertvanginkel/buck,robbertvanginkel/buck,LegNeato/buck,Addepar/buck,LegNeato/buck,ilya-klyuchnikov/buck,romanoid/buck,sdwilsh/buck,marcinkwiatkowski/buck,shs96c/buck,daedric/buck,vschs007/buck,daedric/buck,JoelMarcey/buck,grumpyjames/buck,daedric/buck,brettwooldridge/buck,JoelMarcey/buck,daedric/buck,k21/buck,ilya-klyuchnikov/buck,romanoid/buck,darkforestzero/buck,darkforestzero/buck,facebook/buck,SeleniumHQ/buck,k21/buck,davido/buck,grumpyjames/buck,marcinkwiatkowski/buck,marcinkwiatkowski/buck,LegNeato/buck,facebook/buck,darkforestzero/buck,davido/buck,rmaz/buck,shybovycha/buck,clonetwin26/buck,davido/buck,kageiit/buck,darkforestzero/buck,romanoid/buck,shs96c/buck,davido/buck,zpao/buck,darkforestzero/buck,robbertvanginkel/buck,zhan-xiong/buck,k21/buck,davido/buck,marcinkwiatkowski/buck,ilya-klyuchnikov/buck,Addepar/buck,k21/buck,shybovycha/buck,robbertvanginkel/buck,sdwilsh/buck,vschs007/buck,daedric/buck,SeleniumHQ/buck,romanoid/buck,zhan-xiong/buck,JoelMarcey/buck,shybovycha/buck,kageiit/buck,dsyang/buck,JoelMarcey/buck,shs96c/buck,sdwilsh/buck,rmaz/buck,shybovycha/buck,robbertvanginkel/buck,vschs007/buck,k21/buck,davido/buck,sdwilsh/buck,facebook/buck,JoelMarcey/buck,grumpyjames/buck,zpao/buck,grumpyjames/buck,dsyang/buck,vschs007/buck,davido/buck,grumpyjames/buck,Addepar/buck,ilya-klyuchnikov/buck,k21/buck,clonetwin26/buck,clonetwin26/buck,SeleniumHQ/buck,dsyang/buck,darkforestzero/buck,clonetwin26/buck,robbertvanginkel/buck,darkforestzero/buck,shs96c/buck,dsyang/buck,shs96c/buck,darkforestzero/buck,marcinkwiatkowski/buck,JoelMarcey/buck,brettwooldridge/buck,kageiit/buck,JoelMarcey/buck,brettwooldridge/buck,brettwooldridge/buck,rmaz/buck,Addepar/buck,dsyang/buck,romanoid/buck,k21/buck,robbertvanginkel/buck,zpao/buck,ilya-klyuchnikov/buck,vschs007/buck,ilya-klyuchnikov/buck,facebook/buck,marcinkwiatkowski/buck,marcinkwiatkowski/buck,shs96c/buck,facebook/buck,romanoid/buck,zhan-xiong/buck,grumpyjames/buck,robbertvanginkel/buck,shs96c/buck,romanoid/buck,k21/buck,sdwilsh/buck,shs96c/buck,ilya-klyuchnikov/buck,Addepar/buck,clonetwin26/buck,grumpyjames/buck,davido/buck,grumpyjames/buck,dsyang/buck,brettwooldridge/buck,nguyentruongtho/buck