Remove 'return' from noreturn function

	* libsupc++/nested_exception.h (throw_with_nested): Remove return.

From-SVN: r241032

libstdc++-v3/ChangeLog

 2016-10-12  Jonathan Wakely  <jwakely@redhat.com>
 
+	* libsupc++/nested_exception.h (throw_with_nested): Remove return.
+
 	* doc/xml/manual/intro.xml: Document LWG 2442 status.
 	* include/std/mutex [_GLIBCXX_HAVE_TLS] (__once_call_impl): Remove.
 	[_GLIBCXX_HAVE_TLS] (_Once_call): Declare primary template and define

libstdc++-v3/libsupc++/nested_exception.h

@@ -122,7 +122,7 @@ namespace std
 	  "throw_with_nested argument must be CopyConstructible");
       using __nest = __and_<is_class<_Up>, __bool_constant<!__is_final(_Up)>,
 			    __not_<is_base_of<nested_exception, _Up>>>;
-      return std::__throw_with_nested_impl(std::forward<_Tp>(__t), __nest{});
+      std::__throw_with_nested_impl(std::forward<_Tp>(__t), __nest{});
     }
 
   // Determine if dynamic_cast<const nested_exception&> would be well-formed.