fix build

apparently I removed the wrong one with 15344d0415f153ba579ad132266c47990a8c9515

with pch I don't see those problems :(

Change-Id: If4cb8b178bdd8f8d68b4921c1993642656fc75ea
remove unused HelpDownload

Change-Id: Ib9e8a9a80498ad87df6ab13ded1127d068913347