Delete IHelp API

Deprecated since 3.0 and marked for removal since 2023-12. One should
use org.eclipse.help.HelpSystem#getTocs() and
org.eclipse.help.HelpSystem#getContext(String).

Author: akurtakov

ua/org.eclipse.help/META-INF/MANIFEST.MF

@@ -2,7 +2,7 @@ Manifest-Version: 1.0
 Bundle-ManifestVersion: 2
 Bundle-Name: %help_plugin_name
 Bundle-SymbolicName: org.eclipse.help; singleton:=true
-Bundle-Version: 3.10.600.qualifier
+Bundle-Version: 3.11.0.qualifier
 Bundle-Activator: org.eclipse.help.internal.HelpPlugin
 Bundle-Vendor: %providerName
 Bundle-Localization: plugin

ua/org.eclipse.help/pom.xml

@@ -18,6 +18,6 @@
   </parent>
   <groupId>org.eclipse.platform</groupId>
   <artifactId>org.eclipse.help</artifactId>
-  <version>3.10.600-SNAPSHOT</version>
+  <version>3.11.0-SNAPSHOT</version>
   <packaging>eclipse-plugin</packaging>
 </project>