MAINT: Remove unused code path for applying maskedarray domains to ufunc with nin>2
MAINT: Remove unused code path for applying maskedarray domains to ufunc with nin>2

There are no native ufuncs with this configuration.
Additionally, if there were, it would make more since for the domaining function to receive all the arguments, not reduce them pairwise.

MSeifert04/numpy,gfyoung/numpy,Eric89GXL/numpy,endolith/numpy,endolith/numpy,seberg/numpy,pizzathief/numpy,pdebuyl/numpy,rgommers/numpy,pizzathief/numpy,jakirkham/numpy,jakirkham/numpy,MSeifert04/numpy,pbrod/numpy,gfyoung/numpy,madphysicist/numpy,Eric89GXL/numpy,pdebuyl/numpy,WarrenWeckesser/numpy,jakirkham/numpy,grlee77/numpy,simongibbons/numpy,WarrenWeckesser/numpy,pizzathief/numpy,pbrod/numpy,anntzer/numpy,pdebuyl/numpy,numpy/numpy,ahaldane/numpy,MSeifert04/numpy,rgommers/numpy,ahaldane/numpy,mattip/numpy,jorisvandenbossche/numpy,charris/numpy,pbrod/numpy,shoyer/numpy,tynn/numpy,jorisvandenbossche/numpy,mhvk/numpy,anntzer/numpy,rgommers/numpy,seberg/numpy,jorisvandenbossche/numpy,pdebuyl/numpy,Eric89GXL/numpy,grlee77/numpy,mhvk/numpy,jakirkham/numpy,seberg/numpy,mattip/numpy,MSeifert04/numpy,shoyer/numpy,tynn/numpy,WarrenWeckesser/numpy,mhvk/numpy,pbrod/numpy,endolith/numpy,tynn/numpy,simongibbons/numpy,madphysicist/numpy,WarrenWeckesser/numpy,numpy/numpy,MSeifert04/numpy,mattip/numpy,grlee77/numpy,pbrod/numpy,endolith/numpy,simongibbons/numpy,abalkin/numpy,numpy/numpy,ahaldane/numpy,shoyer/numpy,grlee77/numpy,mhvk/numpy,charris/numpy,ahaldane/numpy,pizzathief/numpy,madphysicist/numpy,simongibbons/numpy,madphysicist/numpy,shoyer/numpy,rgommers/numpy,anntzer/numpy,jakirkham/numpy,numpy/numpy,grlee77/numpy,ahaldane/numpy,abalkin/numpy,jorisvandenbossche/numpy,WarrenWeckesser/numpy,Eric89GXL/numpy,seberg/numpy,simongibbons/numpy,shoyer/numpy,charris/numpy,anntzer/numpy,madphysicist/numpy,mattip/numpy,mhvk/numpy,jorisvandenbossche/numpy,charris/numpy,pizzathief/numpy,gfyoung/numpy,abalkin/numpy