Temporarily remove Win10 QuadroP400 from CQ.

This tryjob is currently just experimental/non-blocking, and we are
severely short on capacity due to chromium:821040.

Bug: chromium:821040
Change-Id: I36b193cecd4f7ecf4c6f5769e869ee37a1285582
No-Try: true
Reviewed-on: https://skia-review.googlesource.com/114221
Reviewed-by: Eric Boren <borenet@google.com>
Commit-Queue: Ben Wagner <benjaminwagner@google.com>
1 file changed