Re-Enable FPE Trap for SYCL (AMReX-Codes#3430)

FPE trapping was disabled for SYCL in the past due to a bug in the Intel
graphics compiler. The bug has long been fixed.

Also remove the macro for PGI, because we don't need to support PGI < 16
anymore.

More information about the bug. The JIT compiler computed `sqrt(-1)` and
was caught by AMReX's signal handler.

Src/Base/AMReX.cpp

@@ -548,14 +548,11 @@ amrex::Initialize (int& argc, char**& argv, bool build_parm_parse,
  if (invalid) curr_fpe_excepts |= FE_INVALID;
  if (divbyzero) curr_fpe_excepts |= FE_DIVBYZERO;
  if (overflow) curr_fpe_excepts |= FE_OVERFLOW;
-#if !defined(AMREX_USE_SYCL) && (!defined(__PGI) || (__PGIC__ >= 16))
- // xxxxx SYCL todo: fpe trap
  prev_fpe_excepts = fegetexcept();
  if (curr_fpe_excepts != 0) {
  feenableexcept(curr_fpe_excepts); // trap floating point exceptions
  prev_handler_sigfpe = std::signal(SIGFPE, BLBackTrace::handler);
  }
-#endif
 
 #elif defined(__APPLE__) && defined(__x86_64__)
  prev_fpe_mask = _MM_GET_EXCEPTION_MASK();