RFR: 8295273: Remove unused argument in [load/store]_sized_value on aarch64 and riscv

Thu Oct 13 12:39:51 UTC 2022

Remove the unused argument `Register [dst2/src2]` in [load/store]_sized_value on aarch64 and riscv ports.

Seems like they were brought in in the initial ports [JDK-8068054](https://bugs.openjdk.org/browse/JDK-8068054) [JDK-8276799](https://bugs.openjdk.org/browse/JDK-8276799) as just straight signature copies of x86. The second register is only required on x86 for x86_32 support and is unused on riscv and aarch64.

Should be a trivial removal.

Testing: Cross-compiled for riscv and aarch64. Waiting for GHA

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Commit messages:
 - Cleanup [load/store]_sized_value

Changes: https://git.openjdk.org/jdk/pull/10698/files
 Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=10698&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8295273
  Stats: 8 lines in 4 files changed: 0 ins; 0 del; 8 mod
  Patch: https://git.openjdk.org/jdk/pull/10698.diff
  Fetch: git fetch https://git.openjdk.org/jdk pull/10698/head:pull/10698

PR: https://git.openjdk.org/jdk/pull/10698