File _link of Package doxygen

<link project="openSUSE:Factory" package="doxygen" baserev="c1ad43fa0445ee21547fab448715f58e">
  <patches>
    <delete name="doxygen-1.13.1.src.tar.gz"/>
    <delete name="doxygen-no-libclang-cpp.patch"/>
    <apply name="project.diff"/>
  </patches>
</link>