remove another block matrix scalarAdd (#3263)
remove another block matrix scalarAdd (#3263)


hail-is/hail,cseed/hail,cseed/hail,danking/hail,danking/hail,hail-is/hail,danking/hail,danking/hail,danking/hail,cseed/hail,cseed/hail,cseed/hail,cseed/hail,cseed/hail,danking/hail,hail-is/hail,hail-is/hail,danking/hail,hail-is/hail,hail-is/hail,cseed/hail,hail-is/hail,danking/hail,hail-is/hail