Revert "news: Mention VIR_ERR_DEPRECATED in improvements"

This reverts commit 3026f6d9.
Signed-off-by: NDaniel P. Berrangé <berrange@redhat.com>

docs/news.xml

@@ -64,16 +64,6 @@
       </change>
     </section>
     <section title="Improvements">
-      <change>
-        <summary>
-          Add error code for deprecated operations
-        </summary>
-        <description>
-          The new error code VIR_ERR_DEPRECATED allows for more reliable checks
-          of scenarios where libvirt deprecated a certain operation or
-          configuration.
-        </description>
-      </change>
     </section>
     <section title="Bug fixes">
     </section>