Removed including index toast from release notes, since it is reverted from the code

Author: vbwagner

doc/src/sgml/release-pro-10.sgml

@@ -15,14 +15,6 @@
     <link linkend="release-10-2">PostgreSQL 10.2 Release Notes</link>, respectively.
     Other major changes and enhancements are as follows:</para>
     <itemizedlist spacing="compact">
-      <listitem>
-        <para>
-          Added support for TOAST to INCLUDED attributes for B-tree indexes.</para>
-        <!-- 
-             82b20c67ee951030bc1791bfaecde7ca8aeb913f
-             303a732208a8301827268d10f2248a00cffaf348
-          -->
-      </listitem>
       <listitem>
         <para>Implemented dynamic prepare of the default directory for storing
           <command>psql</command> history on Windows systems.</para>