Remove redundant note on NT port.

doc/src/sgml/ports.sgml

@@ -242,6 +242,7 @@ At the time of publication, the following platforms have been tested:
 </TGROUP>
 </TABLE>
 </para>
+
 <para>
 Platforms listed for v6.3.x should also work with v6.4, but we did not receive
 confirmation of such at the time this list was compiled.
@@ -322,10 +323,6 @@ Others listed here do not provide sufficient library support for an attempt.
 </TABLE>
 </para>
 
-<Para>
-Note that Windows ports of the frontend are apparently possible
-using third-party Posix porting tools and libraries.
-</Para>
 </Sect1>
 
 </Chapter>