* Remove old prefab support from UI Editor
Signed-off-by: abrmich <abrmich@amazon.com>
* Delete deprecated prefab files that are no longer supported in UI Editor
Signed-off-by: abrmich <abrmich@amazon.com>
* Final update copyright headers to reference license files at the repo root
Signed-off-by: spham <spham@amazon.com>
* Fix copyright validator unit tests to support the stale O3DE header scenario
Signed-off-by: spham <spham@amazon.com>