Remove set_numpy_masked_string hack for HTML writer after #5379
Remove set_numpy_masked_string hack for HTML writer after #5379

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