1 files changed, 0 insertions, 5 deletions
diff --git a/perl.h b/perl.h
index c7807b42ce..565ad6306b 100644
--- a/perl.h
+++ b/perl.h
@@ -813,11 +813,6 @@ int usleep(unsigned int);
 #define PERL_ARENA_SIZE 4080
 #endif
 
-/* enable ARENA_SETS by default, but allow disabling */
-#ifndef ARENASETS
-#define ARENASETS 1
-#endif
-
 #endif /* PERL_CORE */
 
 /* We no longer default to creating a new SV for GvSV.