Remove `jvmrunargs` lookup in `main`

[ppkarwasz]

PR #3874 needs to be cherry-picked to main

[ramanathan1504]

@ppkarwasz
I can take this up and prepare the cherry-pick PR to main.

[ppkarwasz]

Thanks!

[ramanathan1504]

@ppkarwasz

⚠️ Apology / Update:
The previous PR was created by mistake and included unrelated commits.
I’ve now restored a clean branch (issue-3887-clean) with only the intended changes to remove the jvmrunargs lookup.
Thank you for your patience, and I apologize for the confusion.