python-adb: Don't override timeout arg for shell commands.

Don't override the argument if the caller passed a value less than
the default value. Default is default, not minimum. Let the caller
decide what timeout they want.

R=maruel@chromium.org
Bug:
Change-Id: I9ef76ef79fdefbd05e2ebc6a6ac90b4d06ade7f2
Reviewed-on: https://chromium-review.googlesource.com/669666
Reviewed-by: Marc-Antoine Ruel <maruel@chromium.org>
1 file changed