fix: remove nixpkgarchive from ui

app/Http/Livewire/Project/Application/General.php

@@ -48,7 +48,6 @@ class General extends Component
         'application.ports_exposes' => 'required',
         'application.ports_mappings' => 'nullable',
         'application.dockerfile' => 'nullable',
-        'application.nixpkgsarchive' => 'nullable',
     ];
     protected $validationAttributes = [
         'application.name' => 'name',
@@ -67,7 +66,6 @@ class General extends Component
         'application.ports_exposes' => 'Ports exposes',
         'application.ports_mappings' => 'Ports mappings',
         'application.dockerfile' => 'Dockerfile',
-        'application.nixpkgsarchive' => 'Nixpkgs archive',
     ];
 
     public function instantSave()