Remove unused validation rule, and remove note tagging code, its now in the references observer

app/Providers/AppServiceProvider.php

@@ -2,10 +2,9 @@
 
 namespace App\Providers;
 
-use App\Tag;
 use App\Note;
-use Validator;
 use Illuminate\Http\Request;
+use App\Observers\NoteObserver;
 use Laravel\Dusk\DuskServiceProvider;
 use Illuminate\Support\ServiceProvider;
 
@@ -18,35 +17,7 @@ class AppServiceProvider extends ServiceProvider
      */
     public function boot()
     {
-        // Validate photos for a maximum filesize
-        Validator::extend('photosize', function ($attribute, $value, $parameters, $validator) {
-            if ($value[0] !== null) {
-                foreach ($value as $file) {
-                    if ($file->getSize() > 5000000) {
-                        return false;
-                    }
-                }
-            }
-
-            return true;
-        });
-
-        //Add tags for notes
-        Note::created(function ($note) {
-            $tagsToAdd = [];
-            preg_match_all('/#([^\s<>]+)\b/', $note->note, $tags);
-            foreach ($tags[1] as $tag) {
-                $tag = Tag::normalizeTag($tag);
-            }
-            $tags = array_unique($tags[1]);
-            foreach ($tags as $tag) {
-                $tag = Tag::firstOrCreate(['tag' => $tag]);
-                $tagsToAdd[] = $tag->id;
-            }
-            if (count($tagsToAdd) > 0) {
-                $note->tags()->attach($tagsToAdd);
-            }
-        });
+        Note::observe(NoteObserver::class);
 
         // Request AS macro
         Request::macro('wantsActivityStream', function () {