test for mixin renames was added later, removing superflous one
test for mixin renames was added later, removing superflous one

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