Remove WorkerServiceImpl memory suppressions.
Remove WorkerServiceImpl memory suppressions.

This shouldn't be relevant anymore since neither the WorkerPrioritySetters that were leaking, nor WorkerServiceImpl exist anymore.

BUG=245714

Review URL: https://codereview.chromium.org/1573263002

Cr-Commit-Position: 972c6d2dc6dd5efdad1377c0d224e03eb8f276f7@{#368661}

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