autotest: platform_Crossystem.py: remove two tests

These are not important and aren't universally supported.

BUG=chromium:474214
TEST=none

Change-Id: I9e50cd9a0e72ea9763f0fd81e885052dde01ecc9
Reviewed-on: https://chromium-review.googlesource.com/265830
Tested-by: Luigi Semenzato <semenzato@chromium.org>
Reviewed-by: Bill Richardson <wfrichar@chromium.org>
Commit-Queue: Luigi Semenzato <semenzato@chromium.org>
1 file changed