Variables can no longer be set as a DataTableRowHandle type

Variables can no longer be set as a DataTableRowHandle type. The option is no longer available in the Variable Type dropdown.

This is a regression: this was possible in 4.7.6. Reproduced in 4.8.3 binary, 4.9.0 binary, and Main (CL 2690063)

1. Open any project
2. Create a new Actor Blueprint
3. Add a new variable
4. For Variable Type, search for "DataTableRowHandle"

Result:
It is not possible to create this variable type