Remove resolve classpath when fetching a raw classpath

[laeubi]

As it seems misplaced here, see

• [performance] PackageFragmentRoot.getRawClasspathEntry() has bad impact on startup performance #3468

[laeubi]

@iloveeclipse @jarthana please review/merge

[iloveeclipse]

@jarthana and @szarnekow : any objections?

Assuming that the raw classpath (and resolved anyway) should be set before any clients can start to play with JDT classpath related code, if some clients are run into the problem after this change would indicate client issue.

[iloveeclipse]

I see one PDE test fail which probably could be related:
https://download.eclipse.org/eclipse/downloads/drops4/I20250108-0430/testresults/html/org.eclipse.pde.ui.tests_ep435I-unit-win32-x86_64-java21_win32.win32.x86_64_21.html

testImportLinksMultiple[Import binary]

C:\Program Files\Eclipse Adoptium\jdk-21.0.5.11-hotspot\lib\jrt-fs.jar is not on its project's build path

Java Model Exception: Error in Java Model (code 1006): C:\Program Files\Eclipse Adoptium\jdk-21.0.5.11-hotspot\lib\jrt-fs.jar is not on its project's build path
at org.eclipse.jdt.internal.core.PackageFragmentRoot.getRawClasspathEntry(PackageFragmentRoot.java:621)
at org.eclipse.pde.ui.tests.imports.BaseImportTestCase.assertSourceAttached(BaseImportTestCase.java:202)
at org.eclipse.pde.ui.tests.imports.BaseImportTestCase.verifyProject(BaseImportTestCase.java:189)
at org.eclipse.pde.ui.tests.imports.BaseImportTestCase.testImportLinksMultiple(BaseImportTestCase.java:120)
at java.base/java.lang.reflect.Method.invoke(Method.java:580)

However these tests run fine locally. I guess MT or timing issue.

Code does basically this:

IJavaProject jProject = JavaCore.create(project);
		for (IPackageFragmentRoot root : jProject.getPackageFragmentRoots()) {
			IClasspathEntry entry = root.getRawClasspathEntry();
			if (entry.getEntryKind() == IClasspathEntry.CPE_LIBRARY
					|| (entry.getEntryKind() == IClasspathEntry.CPE_CONTAINER)
					&& !entry.getPath().equals(PDECore.REQUIRED_PLUGINS_CONTAINER_PATH)) {
				assertNotNull("Missing source attachement for entry " + entry, root.getSourceAttachmentPath());
			}
		}