[dashboard] Switch system health report to chrome.perf bots
[dashboard] Switch system health report to chrome.perf bots

No longer use the internal bots which are due to be deprecated.

Bug: chromium:907040
Change-Id: I6d61baf8031f3d65f99a67bf8de0fb4e7bbb063d
Reviewed-on: https://chromium-review.googlesource.com/c/catapult/+/1535857
Commit-Queue: Juan Antonio Navarro Pérez <1649bb5e6b9eafe026580e338065dc64ba6b80b2@chromium.org>
Reviewed-by: Ben Hayden <d3ffe0e065c2328e497bb32a07f4dcb29138ef5b@chromium.org>
Auto-Submit: Juan Antonio Navarro Pérez <1649bb5e6b9eafe026580e338065dc64ba6b80b2@chromium.org>

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