Work around a problem of the Sun Forte compiler that chokes on some trailing semicolo...

Work around a problem of the Sun Forte compiler that chokes on some trailing semicolons, like in
/* ---------------------------------------- */
/* Problem 1 -- extraneous semicolon?       */
/* (Why does this go away if not a template */
/* or in a namespace?)                      */
namespace NS1 {
    template <class T>
    void test () {};
};

/* ---------------------------------------- */
/* Problem 2 -- extraneous semicolon?       */
/* (Why for inner but not outer namespace?) */
namespace NS2 {
  namespace NS3  {};
};

Fix this by simply removing them.

git-svn-id: https://svn.dealii.org/trunk@5595 0785d39b-7218-0410-832d-ea1e28bc413d