chore(madara): remove Falcon Manga source (AR) - site unavailable

dart/manga/multisrc/madara/src/falconmanga/falconmanga.dart

@@ -1,13 +0,0 @@
-import '../../../../../../model/source.dart';
-
-Source get falconmangaSource => _falconmangaSource;
-
-Source _falconmangaSource = Source(
-  name: "فالكون مانجا",
-  baseUrl: "https://falconmanga.com",
-  lang: "ar",
-
-  typeSource: "madara",
-  iconUrl:
-      "https://raw.githubusercontent.com/kodjodevf/mangayomi-extensions/$branchName/dart/manga/multisrc/madara/src/falconmanga/icon.png",
-);