Haxe: fix deprecated @:enum abstract

libs/golden/Config.hx

@@ -31,7 +31,7 @@ typedef Config = {
 	@:optional var content: Array<ItemConfig>;
 };
 
-@:enum abstract ItemType(String) {
+enum abstract ItemType(String) {
 	var Row = "row";
 	var Column = "column";
 	var Stack = "stack";

libs/monaco/KeyCode.hx

@@ -1,7 +1,6 @@
 package monaco;
 
-@:enum
-abstract KeyCode(Int) from Int to Int {
+enum abstract KeyCode(Int) from Int to Int {
 	var Unknown = 0;
 	var Backspace = 1;
 	var Tab = 2;

libs/nw/Clipboard.hx

@@ -1,6 +1,6 @@
 package nw;
 
-@:enum abstract ClipboardType(String) {
+enum abstract ClipboardType(String) {
 	var Text = "text";
 	var Png = "png";
 	var Jpeg = "jpeg";

libs/nw/Menu.hx

@@ -1,6 +1,6 @@
 package nw;
 
-@:enum abstract MenuType(String) {
+enum abstract MenuType(String) {
 	var Menubar = "menubar";
 	var ContextMenu = "contextmenu";
 }

libs/nw/MenuItem.hx

@@ -1,6 +1,6 @@
 package nw;
 
-@:enum abstract MenuItemType(String) {
+enum abstract MenuItemType(String) {
 	var Normal = "normal";
 	var Checkbox = "checkbox";
 	var Separator = "separator";