[adobe-source-build] legacy ready for deletion

[Foster B. <fbr...@ad...>]

I'll let Sean do the honors.

ASL is open for business - I'll keep working on Travis until the build
passes, but assuming development will be taking place in feature branches
this should not slow anyone else down.

I hope to have APL back up and running soon. Please pardon the Travis
status updates in the interim.

-foster