message: [triplet] Remove obsolete check about dash in the name
  Triplets haven't required that for a while now
diff: @@ -41,9 +41,6 @@ namespace vcpkg
  Triplet Triplet::from_canonical_name(const std::string& triplet_as_string)
  {
  std::string s(Strings::ascii_to_lowercase(triplet_as_string));
  - const auto it = std::find(s.cbegin(), s.cend(), '-');
  - Checks::check_exit(VCPKG_LINE_INFO, it != s.cend(), "Invalid triplet: %s", triplet_as_string);
  -
  const auto p = g_triplet_instances.emplace(std::move(s));
  return &*p.first;
  }
  