[jdk21u-dev] RFR: 8315969: compiler/rangechecks/TestRangeCheckHoistingScaledIV.java: make flagless

[Amos Shi]

Backport of [JDK-8315969](https://bugs.openjdk.org/browse/JDK-8315969)

Testing
- Local: Test passed
  - `TestRangeCheckHoistingScaledIV.java`: Test results: passed: 1
- Pipeline: 
- Testing Machine:

-------------

Commit messages:
 - Backport 9598ff83860235281a08091128b5df90a4a76916

Changes: https://git.openjdk.org/jdk21u-dev/pull/752/files
  Webrev: https://webrevs.openjdk.org/?repo=jdk21u-dev&pr=752&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8315969
  Stats: 4 lines in 2 files changed: 3 ins; 0 del; 1 mod
  Patch: https://git.openjdk.org/jdk21u-dev/pull/752.diff
  Fetch: git fetch https://git.openjdk.org/jdk21u-dev.git pull/752/head:pull/752

PR: https://git.openjdk.org/jdk21u-dev/pull/752