Remove the suppression for issue 422485, which appears to be fixed.
Remove the suppression for issue 422485, which appears to be fixed.

BUG=422485
TBR=noel@chromium.org
NOTRY=true

Review URL: https://codereview.chromium.org/1228313002

Cr-Commit-Position: 972c6d2dc6dd5efdad1377c0d224e03eb8f276f7@{#338264}

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