Remove old flatpak api call

lib/services/weekly_tasks.dart

@@ -1,12 +1,9 @@
 import 'dart:convert';
 
 import 'package:intl/intl.dart';
-import 'package:linux_assistant/enums/softwareManagers.dart';
 import 'package:linux_assistant/services/config_handler.dart';
-import 'package:linux_assistant/services/linux.dart';
 import 'package:linux_assistant/services/updater.dart';
 import 'package:http/http.dart' as http;
-import 'dart:io';
 
 class WeeklyTasks {
   /// Seconds
@@ -22,16 +19,7 @@ class WeeklyTasks {
     }
 
     Future newestVersionRunner = _getNewestVersion();
-
-    Future flathubIndexRunner;
-    if (Linux.currentenvironment.installedSoftwareManagers
-        .contains(SOFTWARE_MANAGERS.FLATPAK)) {
-      flathubIndexRunner = _getFlathubIndex();
-    } else {
-      flathubIndexRunner = Future.delayed(const Duration(seconds: 0));
-    }
     await newestVersionRunner;
-    await flathubIndexRunner;
 
     String newDate = DateFormat('yyyy-MM-dd').format(DateTime.now());
     await ConfigHandler().setValue("last-weekly-task", newDate);
@@ -49,16 +37,4 @@ class WeeklyTasks {
     await ConfigHandler()
         .setValue("newest-linux-assistant-version", newestVersion);
   }
-
-  static Future<void> _getFlathubIndex() async {
-    http.Response response = await http
-        .get(Uri.parse("https://flathub.org/api/v1/apps"))
-        .timeout(const Duration(seconds: _defaultTimeout));
-
-    // Write flathubIndexJson into file
-    String homeDir = Linux.getHomeDirectory();
-    File flathubIndexFile =
-        File("$homeDir.config/linux-assistant/flathub_index.json");
-    await flathubIndexFile.writeAsString(response.body);
-  }
 }