remove deprecated domain type
remove deprecated domain type

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