message: [XLA:GPU] Remove support for compute capabilities below sm_30
  Fermi and below are not supported by Cuda 9 which is the oldest Cuda supported
  by XLA.
diff: @@ -115,8 +115,6 @@ static string GetLibdeviceFilename(const string& libdevice_dir_path,
  // we see an unrecognized compute capability, we return "sm_30".
  static string GetSmName(std::pair<int, int> compute_capability) {
  static auto* m = new std::map<std::pair<int, int>, int>({
  - {{2, 0}, 20},
  - {{2, 1}, 21},
  {{3, 0}, 30},
  {{3, 2}, 32},
  {{3, 5}, 35},
  