No, Send Table Data hasn't been removed - it's actually the new and improved replacement for the old "Write to Other Table" feature.
From your screenshots, I can see "Send table data" is showing up in both searches, so it's definitely still available. It's now categorized under "Export" in the Actions menu. [1]
The "Send Table Data" action lets you transfer data between tables, send to new tables or append to existing ones, and map columns between source and destination tables. You can access it by going to Actions > Send Table Data. [2]
"Write to Other Table" has been deprecated and replaced with "Send Table Data." Your existing Write to Other Table columns will keep working, but we recommend switching to the new Send Table Data action.
The new Send Table Data action is available in Actions > Send Table Data and offers better functionality for transferring data between tables. [1] You can send data to new tables or append to existing ones, plus map columns between source and destination tables.
While the legacy Write to Other Table is still available when you use "Add Enrichment," it won't get new features going forward.
If you need any more help with the Send Table Data feature or have other questions, I’m here to assist. Would you like to share more about what you’re trying to achieve with this action?