dfp support isn't built into libgcc when fenv.h doesn't define the
expected FE_* macros, but some dfp tests go "dg-do run", overriding
the default "compile" when dfprt is not available.
Drop the overrider.
for gcc/testsuite/ChangeLog
* gcc.dg/dfp/c23-decimal64x-1.c: Drop the explicit dg-do run.
* gcc.dg/dfp/c23-decimal64x-3.c: Likewise.
/* Test _Decimal64x in C23 mode. */
-/* { dg-do run } */
/* { dg-options "-std=c23 -pedantic-errors" } */
int a = (int) 1.1D64x;
/* Test _Decimal64x in C23 mode - builtins. */
-/* { dg-do run } */
/* { dg-options "-std=c23 -pedantic-errors" } */
_Decimal64x a = __builtin_infd64x ();