The CEOs of Home Depot and Walmart U.S. penned a joint column in the Wall Street Journal urging employers to stop valuing college degrees and start valuing skills when hiring. In the op-ed published Tuesday and titled "Not Everyone Needs a College Degree," Home Depot’s Ted Decker and Walmart U.S. branch's John Furner detail how they "are helping build a skills-based economy.""A skills-based approach to employment is critical in a country where 6…