Remove xpath namespace-handling change from 9.5 release notes.

Although commit 79af9a1d was initially applied to HEAD only, we later
back-patched the change into all branches (commits 6bbf75192 et al).
So it's not a new behavior in 9.5 and should not be release-noted here.

doc/src/sgml/release-9.5.sgml

@@ -1390,23 +1390,6 @@ FIXME: Better description?
 
      <listitem>
 <!--
-2015-01-06 [79af9a1] Peter ..: Fix namespace handling in xpath function
--->
-      <para>
-       Fix <type>XML</> <link
-       linkend="functions-xml-processing"><function>xpath()</></> handling
-       to return namespace declarations even if the namespace is in a
-       parent element (Ali Akbar)
-      </para>
-
-      <para>
-       Previously the namespace was not returned, potentially leading to
-       invalid <type>XML</>.
-      </para>
-     </listitem>
-
-     <listitem>
-<!--
 2014-10-21 [6f04368] Peter ..: Allow input format xxxx-xxxx-xxxx for macaddr ..
 -->
       <para>