Using bootstrapped vpython causes problems like [1] when used on
platforms it was not compiled for (e.g. Fedora).

[1] https://chromium-review.googlesource.com/c/infra/infra/+/1929031

Change-Id: I4e62cd1a4e13eee58143695f54ecf80d3473a862
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/tools/depot_tools/+/1930181Reviewed-by: Anthony Polito <apolito@google.com>
Commit-Queue: Edward Lesmes <ehmaldonado@chromium.org>