[riscv-port] Integrated: 8278531: riscv: Remove duplicate code bitset_to_fregs

[Feilong Jiang]

On Fri, 10 Dec 2021 01:18:58 GMT, Feilong Jiang <fjiang at openjdk.org> wrote:

> After [JDK-8278337](https://bugs.openjdk.java.net/browse/JDK-8278337), the definition of `bitset_to_fregs` is just same as `bitset_to_regs`.
> 
> Hotspot and jdk tier1 passed on the unmatched board. All tests were tested without new failures.

This pull request has now been integrated.

Changeset: e7d712c8
Author:    Feilong Jiang <fjiang at openjdk.org>
Committer: Fei Yang <fyang at openjdk.org>
URL:       https://git.openjdk.java.net/riscv-port/commit/e7d712c8e8ceb759ed8906706ff2b06996417a5e
Stats:     17 lines in 2 files changed: 0 ins; 14 del; 3 mod

8278531: riscv: Remove duplicate code bitset_to_fregs

Reviewed-by: fyang

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PR: https://git.openjdk.java.net/riscv-port/pull/28