Remove VC8 failure markup (filesystem)

[SVN r25696]

status/explicit-failures-markup.xml

@@ -392,12 +392,6 @@
                 the most recent version of the library.
             </note>
         </mark-unusable>
-        <test name="operations_test">
-            <mark-failure>
-                <toolset name="vc-8_0"/>
-                <note author="Aleksey Gurtovoy" refid="4"/>
-            </mark-failure>
-        </test>
     </library>