crosperf: Remove veyron from remotes

Veyron was removed from the nightly toolchain testing.
Remove it from remotes monitoring.

BUG=b:227714343
TEST=None

Change-Id: I23d0b6027b0a37e6ebcde77955fa00eb8941b2b0
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/third_party/toolchain-utils/+/3565860
Tested-by: Denis Nikitin <denik@chromium.org>
Auto-Submit: Denis Nikitin <denik@chromium.org>
Reviewed-by: Ryan Beltran <ryanbeltran@chromium.org>
Commit-Queue: Ryan Beltran <ryanbeltran@chromium.org>
Feels: Ryan Beltran <ryanbeltran@chromium.org>
2 files changed