compiler warnings in unused variables and typedef

[anonymous]

Compiling boost/numeric/interval gave compiler warnings.

The following changes fixes these:

--- boost_1_61_0/boost/numeric/interval/arith2.hpp	2016-05-05 23:13:19.000000000 +0200
+++ b/boost/numeric/interval/arith2.hpp	2016-07-21 14:19:20.675084428 +0200
@@ -273,7 +273,6 @@
   if (interval_lib::detail::test_input(x)) return I::empty();
   assert(k > 0);
   if (k == 1) return x;
-  typename Policies::rounding rnd;
   typedef typename interval_lib::unprotect<I>::type R;
   if (!interval_lib::user::is_pos(x.upper())) {
     if (interval_lib::user::is_zero(x.upper())) {
--- boost_1_61_0/boost/numeric/interval/utility.hpp	2016-05-05 23:13:19.000000000 +0200
+++ b/boost/numeric/interval/utility.hpp	2016-07-21 14:19:54.064881144 +0200
@@ -248,7 +248,6 @@
 template<class T, class Policies> inline
 T norm(const interval<T, Policies>& x)
 {
-  typedef interval<T, Policies> I;
   if (interval_lib::detail::test_input(x)) {
     typedef typename Policies::checking checking;
     return checking::nan();