Remove unnecessary jvm opts when starting worker
Remove unnecessary jvm opts when starting worker

### What changes are proposed in this pull request?

fix https://github.com/Alluxio/alluxio/issues/14994

### Why are the changes needed?
Remove redundent JVM options for worker.
See
https://github.com/Alluxio/alluxio/blob/master/bin/launch-process#L77
When running launch-process script, it had initialized the config. It is
unnecessary to pass the worker JVM opts in alluxio-start.sh

### Does this PR introduce any user facing changes?
No

pr-link: Alluxio/alluxio#15005
change-id: cid-d1d56f8b06267735c5d66359df0adbc8f6c520f1
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