Bug 411487 - CBI Build: Build Scout from Tag

https://bugs.eclipse.org/bugs/show_bug.cgi?id=411487

Removes fallback branch and Scout submodule checking.

(cherry picked from commit 6254dbbc2eaadc28fee4f5b2d560971ae9f0f8ef)

Change-Id: I3ba3d692b301deeca60890346fd7bddf0b618061
Reviewed-on: https://git.eclipse.org/r/17257
Reviewed-by: Ken Lee <kle@bsiag.com>
IP-Clean: Ken Lee <kle@bsiag.com>
Tested-by: Ken Lee <kle@bsiag.com>
2 files changed