Remove obsolete CtsTetheringTestLatestSdk

This commit removes the obsolete CtsTetheringTestLatestSdk target, which
is no longer needed. This target was previously required for CTS to
function on the mainline-prod branch, but with the migration to trunk
stable, these branches no longer exist.

Test: TH
Change-Id: Ib6600071dd82e9e8b429b69844703429dea12438
1 file changed