This reverts commit 8c5cdf18.

Reason for revert:
https://bugs.chromium.org/p/chromium/issues/detail?id=1056958

Original change's description:
> Print content of description backup on exit
> 
> R=​apolito@google.com
> 
> Bug: 1056193
> Change-Id: I656149b8ddad61f6b673193b72d780b72a585f43
> Reviewed-on: https://chromium-review.googlesource.com/c/chromium/tools/depot_tools/+/2078308
> Commit-Queue: Josip Sokcevic <sokcevic@google.com>
> Reviewed-by: Anthony Polito <apolito@google.com>

TBR=apolito@google.com,infra-scoped@luci-project-accounts.iam.gserviceaccount.com,sokcevic@google.com

Change-Id: I5190f4e0f342d0ee06474e6c432004ef95bec85b
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Bug: 1056193
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/tools/depot_tools/+/2079307Reviewed-by: Edward Lesmes <ehmaldonado@chromium.org>
Commit-Queue: Edward Lesmes <ehmaldonado@chromium.org>