Skip the ufunc coverage test if scipy is present.
Skip the ufunc coverage test if scipy is present.

This since we do not cover all those anyway; previously, we
removed them but some odd failures have crept up that seem
related to that.

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