message: [lldb] [Process/NetBSD] Remove unnecessary FPU presence checks for x86_64
  Remove the checks for FPU presence, FXSAVE support and usage from
  the code for x86_64.  Those are always true for this architecture,
  and in fact are hardcoded to true inside NetBSD kernel.
diff: @@ -90,58 +90,6 @@ static const RegisterSet g_reg_sets_x86_64[k_num_register_sets] = {
  };
  #define REG_CONTEXT_SIZE (GetRegisterInfoInterface().GetGPRSize())
  -
  -const int fpu_present = []() -> int {
  - int mib[2];
  - int error;
  - size_t len;
  - int val;
  -
  - len = sizeof(val);
  - mib[0] = CTL_MACHDEP;
  - mib[1] = CPU_FPU_PRESENT;
  -
  - error = sysctl(mib, __arraycount(mib), &val, &len, NULL, 0);
  - if (error)
  - errx(EXIT_FAILURE, "sysctl");
  -
  - return val;
  -}();
  -
  -const int osfxsr = []() -> int {
  - int mib[2];
  - int error;
  - size_t len;
  - int val;
  -
  - len = sizeof(val);
  - mib[0] = CTL_MACHDEP;
  - mib[1] = CPU_OSFXSR;
  -
  - error = sysctl(mib, __arraycount(mib), &val, &len, NULL, 0);
  - if (error)
  - errx(EXIT_FAILURE, "sysctl");
  -
  - return val;
  -}();
  -
  -const int fpu_save = []() -> int {
  - int mib[2];
  - int error;
  - size_t len;
  - int val;
  -
  - len = sizeof(val);
  - mib[0] = CTL_MACHDEP;
  - mib[1] = CPU_FPU_SAVE;
  -
  - error = sysctl(mib, __arraycount(mib), &val, &len, NULL, 0);
  - if (error)
  - errx(EXIT_FAILURE, "sysctl");
  -
  - return val;
  -}();
  -
  } // namespace
  NativeRegisterContextNetBSD *
  @@ -197,7 +145,7 @@ int NativeRegisterContextNetBSD_x86_64::GetSetForNativeRegNum(
  if (reg_num <= k_last_gpr_x86_64)
  return GPRegSet;
  else if (reg_num <= k_last_fpr_x86_64)
  - return (fpu_present == 1 && osfxsr == 1 && fpu_save >= 1) ? FPRegSet : -1;
  + return FPRegSet;
  else if (reg_num <= k_last_avx_x86_64)
  return -1; // AVX
  else if (reg_num <= k_last_mpxr_x86_64)
  