RFR: 8293028: Remove GenCollectedHeap::handle_failed_promotion

[Albert Mingkun Yang]

On Mon, 29 Aug 2022 11:37:55 GMT, Albert Mingkun Yang <ayang at openjdk.org> wrote:

> Trivial change of removing dead code.
> 
> Test: build

Thanks for the review.

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PR: https://git.openjdk.org/jdk/pull/10063