dev-util/sysprof: Update metadata.xml

Signed-off-by: Pacho Ramos <[email protected]>

Author: pacho2

dev-util/sysprof/metadata.xml

@@ -5,9 +5,6 @@
     <email>[email protected]</email>
     <name>Gentoo GNOME Desktop</name>
   </maintainer>
-  <use>
-    <flag name="unwind">Use <pkg>sys-libs/libunwind</pkg> to unwind the stack</flag>
-  </use>
   <longdescription lang="en">
     Sysprof is a sampling CPU profiler for Linux that profiles the entire
     system, not just a single application.