remove map_parameters from documentation
remove map_parameters from documentation

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