When you overseason food there is a simple trick that chefs use to remove the salty flavor. Adding acidic ingredients. For example, if you've made a curry and it is over seasoned mix in the juice of a lime or lemon. Adding vinegar, citrus lemons, limes, or even yuzu juice will cancel out the saltiness in your food and at the same time add a zing to the dish. So next time you have over seasoned your food try this chef's trick, you'll be surprised at how effective it is.