Society would probably go normally if this were so sudden. However, this would be short-lived. Once a few deletions happen, the whole society would crash much like the banking system and stock market of the Great Depression era. The population would severely decrease, then the whole planet would come together, then create a single nation of the world, and would agree to discontinue any knowledge of deletion. Some would do it anyway, only leading to a few missing, but eventually the society would truly forget. With technology at mid-prime with the crash of the old society, a scientist of the old ways would be highly respected, and would likely be the main powers of the nation. Fights among the scientists would cause nations to split and free colonies to form. This new state would be much like today, but several technologies of the old society remain undiscovered.