* 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>
These tests broke because RC.EXE is no longer a thing.
A more comprehensive fix and cleanup needs to be performed to
properly remove references to it while still keeping the existing
tests and other things. This just removes as little as is possible
to avoid error.