message: Remove timer (compilation problems on Windows)
diff: #include <gudhi/Skeleton_blocker.h>
  #include <gudhi/Off_reader.h>
  -#include <boost/timer/timer.hpp>
  #include <iostream>
  #include "Garland_heckbert/Error_quadric.h"
  @@ -165,8 +164,6 @@ int main(int argc, char *argv[]) {
  int num_contractions = atoi(argv[3]);
  - boost::timer::auto_cpu_timer t;
  -
  // constructs the contractor object with Garland Heckbert policies.
  Complex_contractor contractor(complex,
  new GH_cost(complex),
  