Remove obsolete Sun workaround

include/boost/array.hpp

@@ -374,33 +374,6 @@ namespace boost {
         x.swap(y);
     }
 
-#if defined(__SUNPRO_CC)
-//  Trac ticket #4757; the Sun Solaris compiler can't handle
-//  syntax like 'T(&get_c_array(boost::array<T,N>& arg))[N]'
-//
-//  We can't just use this for all compilers, because the
-//      borland compilers can't handle this form.
-    namespace detail {
-       template <typename T, std::size_t N> struct c_array
-       {
-           typedef T type[N];
-       };
-    }
-
-   // Specific for boost::array: simply returns its elems data member.
-   template <typename T, std::size_t N>
-   typename detail::c_array<T,N>::type& get_c_array(boost::array<T,N>& arg)
-   {
-       return arg.elems;
-   }
-
-   // Specific for boost::array: simply returns its elems data member.
-   template <typename T, std::size_t N>
-   typename detail::c_array<T,N>::type const& get_c_array(const boost::array<T,N>& arg)
-   {
-       return arg.elems;
-   }
-#else
 // Specific for boost::array: simply returns its elems data member.
     template <typename T, std::size_t N>
     T(&get_c_array(boost::array<T,N>& arg))[N]
@@ -414,7 +387,6 @@ namespace boost {
     {
         return arg.elems;
     }
-#endif
 
 #if 0
     // Overload for std::array, assuming that std::array will have