Removed cw-8.3 from ublas/unusable

[SVN r25532]

status/explicit-failures-markup.xml

@@ -1074,7 +1074,7 @@ for more information.
         <mark-unusable>
             <toolset name="borland"/>
             <toolset name="borland-5.6.4"/>
-            <toolset name="cw-8.3*"/>
+            <!--toolset name="cw-8.3*"/ -->
             <note author="M.Stevens" refid="2"/>
         </mark-unusable>
         <test name="test2">