Disable Common Lisp / UFFI target language

Clean up to disable target languages that have been neglected/not functional.
Target language be fully deleted in SWIG 4.1 unless a new maintainer brings
it up to an acceptable status (experimental or supported).

Issue #1447

Doc/Manual/Allegrocl.html

@@ -129,7 +129,7 @@ It is significant to note that, while this is a vendor-specific
 module, we would like to acknowledge the current and ongoing
 work by developers in the open source lisp community that are
 working on similar interfaces to implementation-independent
-foreign function interfaces (UFFI or CFFI, for example). Such
+foreign function interfaces (CFFI, for example). Such
 work can only benefit the lisp community, and we would not
 be unhappy to see some enterprising folk use this work to add
 to it.

Doc/Manual/Lisp.html

@@ -24,7 +24,6 @@
 <li><a href="#Lisp_nn9">Additional Commandline Options </a>
 <li><a href="#Lisp_nn10">Details on CLISP bindings</a>
 </ul>
-<li><a href="#Lisp_nn11">UFFI </a>
 </ul>
 </div>
 <!-- INDEX -->
@@ -39,7 +38,7 @@
       There are more than 9 different implementations of common lisp which
       are available, all have different foreign function
       interfaces. SWIG currently supports only the Allegro Common
-      Lisp, Common Foreign Function Interface(CFFI), CLisp and UFFI
+      Lisp, Common Foreign Function Interface(CFFI), CLisp
       foreign function interfaces.  
 </p>
 <H2><a name="Lisp_nn2">29.1 Allegro Common Lisp</a></H2>
@@ -56,8 +55,8 @@
 
 <p>
       CFFI, the Common Foreign Function Interface, is a portable foreign
-      function interface for ANSI Common Lisp systems, similar in
-      spirit to UFFI. Unlike UFFI, CFFI requires only a small set of
+      function interface for ANSI Common Lisp systems.
+      CFFI requires only a small set of
       low-level functionality from the Lisp implementation, such as
       calling a foreign function by name, allocating foreign memory,
       and dereferencing pointers.  
@@ -809,8 +808,5 @@ struct bar {
 
 </pre></div>
 
-<H2><a name="Lisp_nn11">29.4 UFFI </a></H2>
-
-
 </body>
 </html>

Doc/Manual/SWIG.html

@@ -140,7 +140,6 @@ Supported Target Language Options
      -scilab         - Generate Scilab wrappers
      -sexp           - Generate Lisp S-Expressions wrappers
      -tcl            - Generate Tcl wrappers
-     -uffi           - Generate Common Lisp / UFFI wrappers
      -xml            - Generate XML wrappers
 
 Experimental Target Language Options