Fix build break.
Fix build break.

Summary:
Some unchecked casts annoyed `ant compile-tests` but not `buck test`.
This removes the unchecked casts.

Test Plan:
```
ant compile-test
buck test
```

liuyang-li/buck,rhencke/buck,liuyang-li/buck,Addepar/buck,neonichu/buck,zhan-xiong/buck,lukw00/buck,rmaz/buck,hgl888/buck,illicitonion/buck,zhuxiaohao/buck,janicduplessis/buck,marcinkwiatkowski/buck,JoelMarcey/buck,darkforestzero/buck,clonetwin26/buck,sdwilsh/buck,pwz3n0/buck,romanoid/buck,vine/buck,zhuxiaohao/buck,Dominator008/buck,mogers/buck,rowillia/buck,grumpyjames/buck,illicitonion/buck,janicduplessis/buck,justinmuller/buck,Heart2009/buck,robbertvanginkel/buck,bocon13/buck,vschs007/buck,artiya4u/buck,neonichu/buck,sdwilsh/buck,raviagarwal7/buck,shs96c/buck,ilya-klyuchnikov/buck,lukw00/buck,daedric/buck,vine/buck,vschs007/buck,Addepar/buck,JoelMarcey/buck,justinmuller/buck,bocon13/buck,marcinkwiatkowski/buck,sdwilsh/buck,OkBuilds/buck,vschs007/buck,rmaz/buck,mogers/buck,dpursehouse/buck,nguyentruongtho/buck,luiseduardohdbackup/buck,raviagarwal7/buck,mogers/buck,shs96c/buck,1yvT0s/buck,Dominator008/buck,vine/buck,OkBuilds/buck,daedric/buck,brettwooldridge/buck,OkBuilds/buck,vschs007/buck,MarkRunWu/buck,shs96c/buck,rowillia/buck,1yvT0s/buck,Dominator008/buck,rowillia/buck,davido/buck,mogers/buck,Heart2009/buck,Addepar/buck,ilya-klyuchnikov/buck,illicitonion/buck,ilya-klyuchnikov/buck,Heart2009/buck,Learn-Android-app/buck,neonichu/buck,illicitonion/buck,dsyang/buck,OkBuilds/buck,shybovycha/buck,Distrotech/buck,illicitonion/buck,zhuxiaohao/buck,mikekap/buck,rmaz/buck,zpao/buck,siddhartharay007/buck,hgl888/buck,artiya4u/buck,bocon13/buck,justinmuller/buck,ilya-klyuchnikov/buck,rhencke/buck,Distrotech/buck,bocon13/buck,1yvT0s/buck,vine/buck,daedric/buck,Learn-Android-app/buck,facebook/buck,1yvT0s/buck,shs96c/buck,pwz3n0/buck,davido/buck,pwz3n0/buck,daedric/buck,sdwilsh/buck,dsyang/buck,rowillia/buck,illicitonion/buck,robbertvanginkel/buck,saleeh93/buck-cutom,brettwooldridge/buck,Distrotech/buck,romanoid/buck,grumpyjames/buck,Learn-Android-app/buck,k21/buck,k21/buck,dushmis/buck,darkforestzero/buck,SeleniumHQ/buck,mread/buck,sdwilsh/buck,dpursehouse/buck,neonichu/buck,ilya-klyuchnikov/buck,zpao/buck,rowillia/buck,mnuessler/buck,facebook/buck,ilya-klyuchnikov/buck,brettwooldridge/buck,dpursehouse/buck,JoelMarcey/buck,lukw00/buck,mikekap/buck,stuhood/buck,raviagarwal7/buck,davido/buck,rmaz/buck,shybovycha/buck,Distrotech/buck,daedric/buck,mikekap/buck,pwz3n0/buck,davido/buck,Learn-Android-app/buck,OkBuilds/buck,siddhartharay007/buck,OkBuilds/buck,raviagarwal7/buck,zhan-xiong/buck,mread/buck,facebook/buck,mread/buck,MarkRunWu/buck,romanoid/buck,zhan-xiong/buck,stuhood/buck,facebook/buck,saleeh93/buck-cutom,liuyang-li/buck,romanoid/buck,dushmis/buck,rowillia/buck,liuyang-li/buck,vine/buck,tgummerer/buck,LegNeato/buck,stuhood/buck,zhuxiaohao/buck,zhan-xiong/buck,justinmuller/buck,k21/buck,rhencke/buck,Distrotech/buck,dpursehouse/buck,vine/buck,brettwooldridge/buck,illicitonion/buck,nguyentruongtho/buck,mogers/buck,marcinkwiatkowski/buck,grumpyjames/buck,luiseduardohdbackup/buck,rmaz/buck,daedric/buck,vine/buck,dushmis/buck,illicitonion/buck,dpursehouse/buck,SeleniumHQ/buck,dpursehouse/buck,k21/buck,facebook/buck,rmaz/buck,zhan-xiong/buck,ilya-klyuchnikov/buck,rhencke/buck,neonichu/buck,darkforestzero/buck,rowillia/buck,Dominator008/buck,rhencke/buck,liuyang-li/buck,illicitonion/buck,luiseduardohdbackup/buck,raviagarwal7/buck,raviagarwal7/buck,OkBuilds/buck,brettwooldridge/buck,Learn-Android-app/buck,clonetwin26/buck,romanoid/buck,Dominator008/buck,grumpyjames/buck,romanoid/buck,robbertvanginkel/buck,rmaz/buck,hgl888/buck,artiya4u/buck,Distrotech/buck,shs96c/buck,pwz3n0/buck,stuhood/buck,zhuxiaohao/buck,stuhood/buck,lukw00/buck,Distrotech/buck,mnuessler/buck,SeleniumHQ/buck,k21/buck,grumpyjames/buck,k21/buck,zhan-xiong/buck,artiya4u/buck,Heart2009/buck,robbertvanginkel/buck,brettwooldridge/buck,neonichu/buck,pwz3n0/buck,mread/buck,mogers/buck,tgummerer/buck,clonetwin26/buck,SeleniumHQ/buck,sdwilsh/buck,Dominator008/buck,illicitonion/buck,robbertvanginkel/buck,SeleniumHQ/buck,artiya4u/buck,shybovycha/buck,clonetwin26/buck,OkBuilds/buck,mikekap/buck,darkforestzero/buck,stuhood/buck,zpao/buck,neonichu/buck,1yvT0s/buck,Addepar/buck,rmaz/buck,Addepar/buck,romanoid/buck,hgl888/buck,grumpyjames/buck,janicduplessis/buck,marcinkwiatkowski/buck,MarkRunWu/buck,shybovycha/buck,lukw00/buck,shybovycha/buck,SeleniumHQ/buck,tgummerer/buck,shybovycha/buck,shs96c/buck,robbertvanginkel/buck,LegNeato/buck,MarkRunWu/buck,Dominator008/buck,lukw00/buck,grumpyjames/buck,neonichu/buck,artiya4u/buck,JoelMarcey/buck,1yvT0s/buck,siddhartharay007/buck,nguyentruongtho/buck,romanoid/buck,siddhartharay007/buck,janicduplessis/buck,Dominator008/buck,kageiit/buck,Addepar/buck,mikekap/buck,marcinkwiatkowski/buck,mogers/buck,marcinkwiatkowski/buck,dsyang/buck,clonetwin26/buck,neonichu/buck,romanoid/buck,justinmuller/buck,lukw00/buck,robbertvanginkel/buck,mogers/buck,1yvT0s/buck,davido/buck,1yvT0s/buck,raviagarwal7/buck,LegNeato/buck,mnuessler/buck,tgummerer/buck,lukw00/buck,Learn-Android-app/buck,vschs007/buck,Learn-Android-app/buck,lukw00/buck,janicduplessis/buck,grumpyjames/buck,vschs007/buck,LegNeato/buck,pwz3n0/buck,clonetwin26/buck,Addepar/buck,brettwooldridge/buck,artiya4u/buck,kageiit/buck,tgummerer/buck,mread/buck,hgl888/buck,shybovycha/buck,nguyentruongtho/buck,clonetwin26/buck,dsyang/buck,SeleniumHQ/buck,bocon13/buck,OkBuilds/buck,brettwooldridge/buck,marcinkwiatkowski/buck,sdwilsh/buck,brettwooldridge/buck,lukw00/buck,LegNeato/buck,Distrotech/buck,LegNeato/buck,luiseduardohdbackup/buck,JoelMarcey/buck,hgl888/buck,darkforestzero/buck,Learn-Android-app/buck,LegNeato/buck,Addepar/buck,kageiit/buck,JoelMarcey/buck,bocon13/buck,marcinkwiatkowski/buck,JoelMarcey/buck,dushmis/buck,darkforestzero/buck,dushmis/buck,dushmis/buck,vschs007/buck,siddhartharay007/buck,tgummerer/buck,justinmuller/buck,marcinkwiatkowski/buck,davido/buck,zhan-xiong/buck,janicduplessis/buck,nguyentruongtho/buck,shs96c/buck,bocon13/buck,janicduplessis/buck,vschs007/buck,shybovycha/buck,Dominator008/buck,dsyang/buck,Heart2009/buck,mogers/buck,grumpyjames/buck,daedric/buck,zpao/buck,stuhood/buck,k21/buck,sdwilsh/buck,hgl888/buck,luiseduardohdbackup/buck,vine/buck,nguyentruongtho/buck,rhencke/buck,darkforestzero/buck,pwz3n0/buck,rhencke/buck,shs96c/buck,justinmuller/buck,justinmuller/buck,rhencke/buck,SeleniumHQ/buck,rmaz/buck,rowillia/buck,OkBuilds/buck,raviagarwal7/buck,MarkRunWu/buck,robbertvanginkel/buck,brettwooldridge/buck,janicduplessis/buck,sdwilsh/buck,LegNeato/buck,Addepar/buck,rowillia/buck,davido/buck,luiseduardohdbackup/buck,vschs007/buck,janicduplessis/buck,sdwilsh/buck,romanoid/buck,zhuxiaohao/buck,shs96c/buck,janicduplessis/buck,tgummerer/buck,hgl888/buck,Heart2009/buck,mikekap/buck,dsyang/buck,grumpyjames/buck,JoelMarcey/buck,facebook/buck,zhuxiaohao/buck,sdwilsh/buck,bocon13/buck,saleeh93/buck-cutom,dushmis/buck,daedric/buck,liuyang-li/buck,justinmuller/buck,Learn-Android-app/buck,grumpyjames/buck,dsyang/buck,MarkRunWu/buck,rmaz/buck,rmaz/buck,marcinkwiatkowski/buck,justinmuller/buck,LegNeato/buck,saleeh93/buck-cutom,SeleniumHQ/buck,ilya-klyuchnikov/buck,JoelMarcey/buck,SeleniumHQ/buck,illicitonion/buck,liuyang-li/buck,JoelMarcey/buck,stuhood/buck,vschs007/buck,liuyang-li/buck,daedric/buck,LegNeato/buck,vine/buck,bocon13/buck,ilya-klyuchnikov/buck,mikekap/buck,zpao/buck,SeleniumHQ/buck,zhuxiaohao/buck,bocon13/buck,artiya4u/buck,Dominator008/buck,Learn-Android-app/buck,dsyang/buck,davido/buck,vschs007/buck,siddhartharay007/buck,bocon13/buck,brettwooldridge/buck,dsyang/buck,stuhood/buck,shybovycha/buck,Distrotech/buck,JoelMarcey/buck,bocon13/buck,raviagarwal7/buck,ilya-klyuchnikov/buck,mogers/buck,zhan-xiong/buck,rowillia/buck,Heart2009/buck,Distrotech/buck,artiya4u/buck,siddhartharay007/buck,davido/buck,rowillia/buck,OkBuilds/buck,stuhood/buck,marcinkwiatkowski/buck,shs96c/buck,Addepar/buck,luiseduardohdbackup/buck,clonetwin26/buck,robbertvanginkel/buck,sdwilsh/buck,dpursehouse/buck,LegNeato/buck,justinmuller/buck,dsyang/buck,marcinkwiatkowski/buck,mnuessler/buck,daedric/buck,saleeh93/buck-cutom,MarkRunWu/buck,tgummerer/buck,daedric/buck,dushmis/buck,kageiit/buck,romanoid/buck,darkforestzero/buck,brettwooldridge/buck,zhan-xiong/buck,tgummerer/buck,vschs007/buck,mikekap/buck,rhencke/buck,davido/buck,tgummerer/buck,rmaz/buck,mnuessler/buck,clonetwin26/buck,LegNeato/buck,zpao/buck,pwz3n0/buck,romanoid/buck,darkforestzero/buck,liuyang-li/buck,mogers/buck,JoelMarcey/buck,raviagarwal7/buck,dsyang/buck,vine/buck,mikekap/buck,dsyang/buck,mnuessler/buck,ilya-klyuchnikov/buck,daedric/buck,dsyang/buck,OkBuilds/buck,vschs007/buck,zhan-xiong/buck,k21/buck,facebook/buck,Distrotech/buck,k21/buck,raviagarwal7/buck,shybovycha/buck,mikekap/buck,OkBuilds/buck,justinmuller/buck,robbertvanginkel/buck,Heart2009/buck,darkforestzero/buck,raviagarwal7/buck,JoelMarcey/buck,MarkRunWu/buck,pwz3n0/buck,lukw00/buck,shybovycha/buck,clonetwin26/buck,rhencke/buck,liuyang-li/buck,zhan-xiong/buck,Dominator008/buck,davido/buck,pwz3n0/buck,Addepar/buck,zpao/buck,zhan-xiong/buck,dushmis/buck,siddhartharay007/buck,raviagarwal7/buck,k21/buck,shs96c/buck,hgl888/buck,stuhood/buck,darkforestzero/buck,illicitonion/buck,siddhartharay007/buck,Addepar/buck,tgummerer/buck,davido/buck,janicduplessis/buck,ilya-klyuchnikov/buck,darkforestzero/buck,shybovycha/buck,k21/buck,shs96c/buck,zhuxiaohao/buck,dpursehouse/buck,k21/buck,robbertvanginkel/buck,Dominator008/buck,shybovycha/buck,robbertvanginkel/buck,luiseduardohdbackup/buck,mnuessler/buck,LegNeato/buck,brettwooldridge/buck,illicitonion/buck,shs96c/buck,robbertvanginkel/buck,luiseduardohdbackup/buck,Heart2009/buck,1yvT0s/buck,sdwilsh/buck,mikekap/buck,rhencke/buck,romanoid/buck,clonetwin26/buck,mikekap/buck,ilya-klyuchnikov/buck,kageiit/buck,k21/buck,darkforestzero/buck,janicduplessis/buck,mread/buck,clonetwin26/buck,saleeh93/buck-cutom,justinmuller/buck,artiya4u/buck,Learn-Android-app/buck,marcinkwiatkowski/buck,artiya4u/buck,kageiit/buck,rmaz/buck,grumpyjames/buck,SeleniumHQ/buck,daedric/buck,rowillia/buck,vine/buck,mnuessler/buck,SeleniumHQ/buck,zhan-xiong/buck,nguyentruongtho/buck,liuyang-li/buck,mnuessler/buck,dushmis/buck,clonetwin26/buck,davido/buck,Addepar/buck,kageiit/buck