remove dtype=float when it's already the default
remove dtype=float when it's already the default

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