libchromeos: Remove incorrect test.

dca2caf2ea0d27d1abd0e47f1dbf509bb627dd6c changed the behaviour of
Process to not fail when the output file already exists.
The test should be remove too.

BUG=None
TEST=FEATURES=test emerge-gizmo libchromeos --nodeps

Change-Id: I6495190cf347c8f7dc8eb9f8bd57f01b6d15591e
Reviewed-on: https://chromium-review.googlesource.com/287403
Trybot-Ready: Bertrand Simonnet <bsimonnet@chromium.org>
Tested-by: Bertrand Simonnet <bsimonnet@chromium.org>
Reviewed-by: Christopher Wiley <wiley@chromium.org>
Reviewed-by: Dan Erat <derat@chromium.org>
Commit-Queue: Bertrand Simonnet <bsimonnet@chromium.org>
1 file changed