Remove duplicate computing of list of frame names
Remove duplicate computing of list of frame names

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