This reverts commit acde44818d and
the testing part of b3f417a6e6.
We'd like to obtain more consensus on the download script before
we commit to this. In particular, the new zuul manifest file may
make it possible to do this without adding the feature to the
log upload roles.
Change-Id: I959c44b4dac6cad6d1b3d82ba6bc0949c9c759ff
4f13f7c07f