Marked long-time deprecated API in Plugin for removal

[vogella]

Plugin contains methods which are marked since a long time as deprecated. Marking these for removal to give us the flexibility to remove these after API freeze period if needed.

Triggered by an investigation of ILegacyPreferences from Equinox which calls some of these methods in PreferenceServiceRegistryHelper during startup.

[eclipse-platform-bot]

This pull request changes some projects for the first time in this development cycle.
Therefore the following files need a version increment:

runtime/bundles/org.eclipse.core.runtime/META-INF/MANIFEST.MF

An additional commit containing all the necessary changes was pushed to the top of this PR's branch. To obtain these changes (for example if you want to push more changes) either fetch from your fork or apply the git patch.

Git patch

From 79f240ae2a905c490e20723551b593e4386d39e1 Mon Sep 17 00:00:00 2001
From: Eclipse Platform Bot <[email protected]>
Date: Fri, 9 May 2025 10:15:58 +0000
Subject: [PATCH] Version bump(s) for 4.36 stream


diff --git a/runtime/bundles/org.eclipse.core.runtime/META-INF/MANIFEST.MF b/runtime/bundles/org.eclipse.core.runtime/META-INF/MANIFEST.MF
index d7ec81e54a..ed76b75691 100644
--- a/runtime/bundles/org.eclipse.core.runtime/META-INF/MANIFEST.MF
+++ b/runtime/bundles/org.eclipse.core.runtime/META-INF/MANIFEST.MF
@@ -1,7 +1,7 @@
 Manifest-Version: 1.0
 Bundle-ManifestVersion: 2
 Bundle-Name: %pluginName
-Bundle-Version: 3.33.0.qualifier
+Bundle-Version: 3.33.100.qualifier
 Bundle-SymbolicName: org.eclipse.core.runtime; singleton:=true
 Bundle-Vendor: %providerName
 Bundle-Activator: org.eclipse.core.internal.runtime.PlatformActivator
-- 
2.49.0

Further information are available in Common Build Issues - Missing version increments.

[github-actions]

Test Results

 1 758 files  ±0   1 758 suites  ±0   1h 31m 43s ⏱️ + 6m 6s
 4 173 tests ±0   4 150 ✅ ±0   23 💤 ±0  0 ❌ ±0 
13 119 runs  ±0  12 952 ✅ ±0  167 💤 ±0  0 ❌ ±0 

Results for commit db51eca. ± Comparison against base commit 02ffafb.

[vogella]

the preference API is still used by Ant.... So this should be updated to not mark this API for deletion as I assume no one plans to work on updating Ant to the non-deprecated preferences.