removed unusable toolsets for now

[SVN r30886]

status/explicit-failures-markup.xml

@@ -1948,16 +1948,6 @@ for more information.
 
     <!-- typeof -->
     <library name="typeof">
-        <mark-unusable>
-            <toolset name="sunpro*"/>
-            <toolset name="borland*"/>
-            <toolset name="intel*"/>
-            <toolset name="cw-*"/>
-            <toolset name="vc7"/>
-            <note author="Arkadiy Vertleyb">
-            This compiler is not [yet] supported.
-            </note>
-        </mark-unusable>
         <mark-expected-failures>
             <test name="*_native"/>
             <toolset name="vc-8_0"/>