RFR: 8368724: RISC-V: Remove AvoidUnalignedAccesses Flag [v5]

[Hamlin Li]

On Fri, 10 Oct 2025 08:09:27 GMT, Anjian Wen <wenanjian at openjdk.org> wrote:

>> According to the discuss in https://github.com/openjdk/jdk/pull/27445#, we can use UseUnalignedAccesses and !UseUnalignedAccesses to cover the AvoidUnalignedAccesses Flag, so I Remove the AvoidUnalignedAccesses Flag in this patch
>
> Anjian Wen has updated the pull request incrementally with one additional commit since the last revision:
> 
>   fix the use of unaligned_access

src/hotspot/cpu/riscv/globals_riscv.hpp line 95:

> 93:   product(bool, UseConservativeFence, false,                                     \
> 94:           "Extend i for r and o for w in the pred/succ flags of fence")          \
> 95:   product(bool, AvoidUnalignedAccesses, true,                                    \

Not sure what's the rule to remove this riscv specific options. Can we just simply delete it in this pr?

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PR Review Comment: https://git.openjdk.org/jdk/pull/27510#discussion_r2419066002