remove more unnecessary warning catches
remove more unnecessary warning catches

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