Remove bad test: depended on unspecified value for tcmb.
Remove bad test: depended on unspecified value for tcmb.

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