Remove content type lookup when clearing cached values

[abhi1693]

Proposed Changes

index 9a29c54f5..e072c220a 100644
--- a/netbox/extras/management/commands/reindex.py
+++ b/netbox/extras/management/commands/reindex.py
@@ -69,10 +69,7 @@ class Command(BaseCommand):
         if not kwargs['lazy']:
             self.stdout.write('Clearing cached values... ', ending='')
             self.stdout.flush()
-            content_types = [
-                ContentType.objects.get_for_model(model) for model in indexers.keys()
-            ]
-            deleted_count = search_backend.clear(content_types)
+            deleted_count = search_backend.clear()
             self.stdout.write(f'{deleted_count} entries deleted.')

Justification

When trying to debug the issue for #13507, I wanted to clear my existing cache so I ran ./manage.py reindex expecting all values to be removed including any plugins that have been uninstalled. However, that was not the case and my search was still broken as the plugin values still existed within CacheValue

[jeremystretch]

I'm going to classify this as a bug since we're altering the command's (undesired) behavior.