Should not unset 'title' key in element array

There is a merge request and patch on issue https://www.drupal.org/project/media_entity_remote_image/issues/3467675 🐛 Deprecated function: pathinfo(): Passing null to parameter #1 ($path) of type string is deprecated Active that addresses the problem by simply making the URL field required in media_entity_remote_image/config/install/field.field.media.remote_image.field_media_remote_image_url.yml

https://www.drupal.org/project/media_entity_remote_image/issues/3471458 🐛 D10.3.2 Error "The URL field is required when the field is specified" Active seems to be caused by the same reason.