[Android] Remove old onStats

[kirklandsign]

Use void onStats(String stats) instead.

[pytorch-bot]

🔗 Helpful Links

🧪 See artifacts and rendered test results at hud.pytorch.org/pr/pytorch/executorch/10312

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❗ 1 Active SEVs

There are 1 currently active SEVs. If your PR is affected, please view them below:

• [Infra] Jobs got intermittently cancelled/fail midway checkout

❌ 1 New Failure, 1 Cancelled Job, 3 Pending, 2 Unrelated Failures

As of commit 8c37a94 with merge base d82e852 ():

NEW FAILURE - The following job has failed:

• pull / android / build-llm-demo / linux-job (gh)
  RuntimeError: Command docker exec -t 0f16823c8ee61e9f68235cb04aeae44e4c15a30c6fa098ed5b4a73ff8ea4544a /exec failed with exit code 1

CANCELLED JOB - The following job was cancelled. Please retry:

• Lint / android-java-format / linux-job (gh)

BROKEN TRUNK - The following jobs failed but were present on the merge base:

👉 Rebase onto the `viable/strict` branch to avoid these failures

• Build documentation / check-links (gh) (trunk failure)
  Process completed with exit code 1.
• Build documentation / check-urls (gh) (trunk failure)
  Process completed with exit code 1.

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