Remove ifdef STT_GNU_IFUNC test in tccrun.c

STT_GNU_IFUNC is always defined (there is no conditional definition of
it) so the ifdef test for STT_GNU_IFUNC in tccrun.c has no reason to
be.

tccrun.c

@@ -306,11 +306,7 @@ static uplong rt_printline(uplong wanted_pc)
             sym < sym_end;
             sym++) {
             type = ELFW(ST_TYPE)(sym->st_info);
-            if (type == STT_FUNC
-#ifdef STT_GNU_IFUNC
-                || type == STT_GNU_IFUNC
-#endif
-                ) {
+            if (type == STT_FUNC || type == STT_GNU_IFUNC) {
                 if (wanted_pc >= sym->st_value &&
                     wanted_pc < sym->st_value + sym->st_size) {
                     pstrcpy(last_func_name, sizeof(last_func_name),