Remove obsolete code

index.js

@@ -73,22 +73,6 @@ function isObject(value) {
 	return (value != null && typeof value === "object" && !Array.isArray(value));
 }
 
-// TODO: Move to separate package, decide whether to keep the nested array detection or not - that should probably just be part of the handler?
-function mapMaybeArray(value, handler) {
-	// NOTE: This is async!
-	if (Array.isArray(value)) {
-		return Promise.map(value, (item, i) => {
-			if (Array.isArray(item)) {
-				throw new Error(`Encountered a nested array, which is not allowed; maybe you forgot to flatten it?`);
-			} else {
-				return handler(item, i);
-			}
-		});
-	} else {
-		return handler(value);
-	}
-}
-
 /* Possible values of a schema property:
 true, null, object with only special keys (but not $recurse) -- fetch value and return it as-is
 false -- do not fetch value at all