\Drupal\experience_builder\Plugin\Field\FieldType\ComponentTreeItem::getAvailablePropSourceChoices is dead code

Woah, blast from the past! This was added in ✨ [MR Only] Edit any component prop, powered by a new FieldForComponentSuggester service, which will power the JS UI Fixed and was used by the infamous-but-now-gone TwoTerribleTextAreasWidget. As a very early PoC proving the viability of 🌱 [META] 7. Content type templates — aka "default layouts" — clarify the tree+props data model Active .

It's been dead ever since 🐛 Unable to save node article form — remove obsolete TwoTerribleTextAreasWidget + fix duplicate `XB:image` SDC Fixed AFAICT! 😅

Automatically closed - issue fixed for 2 weeks with no activity.