Removed expected filesystem failures on Tru64, the problem is fixed.

[SVN r33170]

status/explicit-failures-markup.xml

@@ -958,16 +958,6 @@
                 More recent version of the library should work OK.
             </note>
         </mark-unusable>
-        <mark-expected-failures>
-            <test name="operations_test"/>
-            <test name="operations_test_dll"/>
-            <toolset name="gcc-*-osf1"/>
-            <toolset name="tru64*"/>
-            <note author="Markus Schoepflin">
-                The library is mostly working, the test failure observed might
-                be due to a bug in the C library of this platform.
-            </note>
-        </mark-expected-failures>
         <mark-expected-failures>
           <test name="operations_test_dll"/>
           <test name="path_test_dll"/>