RFR: 8349523: Unused runtime calls to drem/frem should be removed [v4]

[Marc Chevalier]

> Remove frem and drem macros nodes when the result is not used. These nodes have other outputs (like memory), which is not meaningful, but preventing them to be dropped so easily. This patch removes the useless frem/drem nodes, and by rewiring the inputs to the outputs.
> 
> Thanks,
> Marc

Marc Chevalier has refreshed the contents of this pull request, and previous commits have been removed. The incremental views will show differences compared to the previous content of the PR. The pull request contains one new commit since the last revision:

  Improve deletion of [fr]rem after parsing

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Changes:
  - all: https://git.openjdk.org/jdk/pull/23694/files
  - new: https://git.openjdk.org/jdk/pull/23694/files/afd6f633..8208f4af

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk&pr=23694&range=03
 - incr: https://webrevs.openjdk.org/?repo=jdk&pr=23694&range=02-03

  Stats: 2 lines in 1 file changed: 0 ins; 0 del; 2 mod
  Patch: https://git.openjdk.org/jdk/pull/23694.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/23694/head:pull/23694

PR: https://git.openjdk.org/jdk/pull/23694