react-scripts/node_modules/clean-css/lib/properties/remove-unused.js

Configuration and scripts for Create React App.

function removeUnused(properties) {
  for (var i = properties.length - 1; i >= 0; i--) {
    var property = properties[i];

    if (property.unused)
      property.all.splice(property.position, 1);
  }
}

module.exports = removeUnused;