RFR: 8323694: RISC-V: Unnecessary ResourceMark in NativeCall::set_destination_mt_safe

[Gui Cao]

Hi, We noticed that RISC-V bears a similar issue as: https://bugs.openjdk.org/browse/JDK-8323584.
In `NativeCall::set_destination_mt_safe`, there is a `ResourceMark` that does not seem to have any purpose: no code in its scope uses resource allocation.

### Testing:

- [x]  Run tier1 tests on qemu 8.1.0 with UseRVV (fastdebug)
- [x]  Run tier1-3 tests on qemu 8.1.0 with UseRVV (release)

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Commit messages:
 - 8323694: RISC-V: Unnecessary ResourceMark in NativeCall::set_destination_mt_safe

Changes: https://git.openjdk.org/jdk/pull/17436/files
 Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=17436&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8323694
  Stats: 2 lines in 1 file changed: 0 ins; 2 del; 0 mod
  Patch: https://git.openjdk.org/jdk/pull/17436.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/17436/head:pull/17436

PR: https://git.openjdk.org/jdk/pull/17436