Revert "Copy symlinks as symlinks rather than trying to resolve them."
Revert "Copy symlinks as symlinks rather than trying to resolve them."

Seems like uploading the files to Google Storage individually 
is too slow. We will have to revert.

BUG=chromium:352686
TEST=None

Change-Id: I43e96e5f0b3a45b6acdaef8c974674ce507e362d
Reviewed-on: https://chromium-review.googlesource.com/190060
Reviewed-by: David James <f231dc574bbeb62604660cbc162d1b8642a0a3af@chromium.org>
Tested-by: David James <f231dc574bbeb62604660cbc162d1b8642a0a3af@chromium.org>

chadversary/chromiumos.chromite,bpsinc-native/src_third_party_chromite,bpsinc-native/src_third_party_chromite,bpsinc-native/src_third_party_chromite,chadversary/chromiumos.chromite