General Motors said Monday it is laying off more than 1,000 salaried employees at its software and service units worldwide.GM, confirming the layoffs initially reported by CNBC, said in a statement that “as we build GM’s future, we must simplify for speed and excellence, make bold choices, and prioritize the investments that will have the greatest impact.”CNBC said the job cuts include roughly 600 jobs at GM’s tech campus near Detroit. GM, which said about half of the cuts are in the United States, said the ...