ImageUtilities code cleanup #12112

Job	Run time
Build Clusters on JDK 17	9m 39s
Build Clusters on JDK 21	8m 10s
Build Clusters on JDK 24-ea	7m 37s
NetBeans on nb-javac	0s
Build-System / Misc Tests on Linux/JDK 17	13m 46s
CV on ubuntu-latest/JDK 17	10m 18s
IDE Modules on Linux/JDK 17	18m 43s
Build platform from src.zip on JDK 17	1m 51s
CV on macos-latest/JDK 17	17m 39s
Build-Tools on Linux/JDK ${{ matrix.java }}	0s
Build release from src.zip on JDK 17	13m 2s
CV on windows-latest/JDK 17	13m 18s
Check Paperwork on Linux/JDK 17	14m 33s
CV on ubuntu-latest/JDK 23	8m 25s
Platform Modules batch1 on Linux/JDK 17 (some on 8)	21m 23s
Platform Modules batch2 on Linux/JDK 17	30m 5s
Java Debugger tests on Linux/JDK ${{ matrix.java }}	0s
Java Hints ${{ matrix.config }} on Linux/JDK ${{ matrix.java }}	0s
Java Modules on Linux/JDK ${{ matrix.java }}	0s
Profiler on Linux/JDK ${{ matrix.java }}	0s
Groovy on Linux/JDK ${{ matrix.java }}	0s
JavaFX on Linux/JDK ${{ matrix.java }}	0s
Web Modules on Linux/JDK ${{ matrix.java }}	0s
Rust on Linux/JDK ${{ matrix.java }}	0s
Enterprise on Linux/JDK ${{ matrix.java }}	0s
Versioning Modules on Linux/JDK ${{ matrix.java }}	0s
DB Tests with MySQL on Linux/JDK ${{ matrix.java }}	0s
PHP on ${{ matrix.os }}/JDK ${{ matrix.java }}	0s
GraalVM ${{ matrix.graal }} Tests	0s
LSP tests on Linux/JDK ${{ matrix.java }}	0s
VSCode Extension Tests on JDK ${{ matrix.java }}	0s
Cleanup Workflow Artifacts	2s
	3h 8m 31s

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