WEST DES MOINES, Iowa –The Iowa-based grocery chain Hy-Vee plans to phase out self-checkout lines. The 280-stre chain chain wants more face-to-face interaction with customers, insiders said.  Another goal, sources said, is to reduce inventory shrinkage through shoplifting. Self-checkout will remain at some Hy-Vees but be limited to 12 items, sources said. Hy-Vee is not alone. Big-box retailers Target and Walmart are scaling back self-checkout aisles.