Remove wrong note about SQLite (fix #2272)

Author: vrana

reference/pdo/pdostatement/rowcount.xml

@@ -29,8 +29,7 @@
   </para>
     <note>
      <para>
-      This method returns "0" (zero) with the SQLite driver at all times,
-      and with the PostgreSQL driver only when setting the
+      This method returns "0" (zero) with PostgreSQL driver when setting the
       <constant>PDO::ATTR_CURSOR</constant> statement attribute to
       <constant>PDO::CURSOR_SCROLL</constant>.
      </para>