MAINT: Remove unused variable from einsum.
MAINT: Remove unused variable from einsum.

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