Remove xfailed table row test_set_slice test (won't ever work)
Remove xfailed table row test_set_slice test (won't ever work)

MSeifert04/astropy,dhomeier/astropy,DougBurke/astropy,larrybradley/astropy,DougBurke/astropy,saimn/astropy,dhomeier/astropy,tbabej/astropy,kelle/astropy,dhomeier/astropy,saimn/astropy,pllim/astropy,larrybradley/astropy,StuartLittlefair/astropy,mhvk/astropy,stargaser/astropy,kelle/astropy,mhvk/astropy,joergdietrich/astropy,mhvk/astropy,lpsinger/astropy,StuartLittlefair/astropy,MSeifert04/astropy,mhvk/astropy,StuartLittlefair/astropy,mhvk/astropy,MSeifert04/astropy,pllim/astropy,larrybradley/astropy,AustereCuriosity/astropy,astropy/astropy,pllim/astropy,lpsinger/astropy,dhomeier/astropy,aleksandr-bakanov/astropy,larrybradley/astropy,StuartLittlefair/astropy,aleksandr-bakanov/astropy,funbaker/astropy,bsipocz/astropy,joergdietrich/astropy,larrybradley/astropy,tbabej/astropy,funbaker/astropy,bsipocz/astropy,astropy/astropy,bsipocz/astropy,stargaser/astropy,tbabej/astropy,StuartLittlefair/astropy,aleksandr-bakanov/astropy,DougBurke/astropy,MSeifert04/astropy,saimn/astropy,astropy/astropy,astropy/astropy,funbaker/astropy,joergdietrich/astropy,saimn/astropy,kelle/astropy,lpsinger/astropy,lpsinger/astropy,AustereCuriosity/astropy,DougBurke/astropy,tbabej/astropy,joergdietrich/astropy,kelle/astropy,tbabej/astropy,joergdietrich/astropy,funbaker/astropy,aleksandr-bakanov/astropy,AustereCuriosity/astropy,pllim/astropy,stargaser/astropy,astropy/astropy,lpsinger/astropy,AustereCuriosity/astropy,saimn/astropy,pllim/astropy,stargaser/astropy,bsipocz/astropy,kelle/astropy,AustereCuriosity/astropy,dhomeier/astropy