--- libmalloc/libmalloc-283.100.5/tests/perf_realloc.c
+++ libmalloc/libmalloc-409.40.6/tests/perf_realloc.c
@@ -38,9 +38,6 @@
 	dt_stat_time_t s = dt_stat_time_create(name);
 	dt_stat_set_variable((dt_stat_t)s, "size (bytes)", (unsigned int)size);
 	dt_stat_set_variable((dt_stat_t)s, "amount (bytes)", (int)amount);
-	// rdar://problem/40417821: disable thresholds for now.
-	//dt_stat_set_variable((dt_stat_t)s, kPCFailureThresholdPctVar,
-	//		PERFCHECK_THRESHOLD_PCT);
 	dt_stat_token now = dt_stat_time_begin(s);
 
 	for (;;) {
@@ -152,16 +149,6 @@
 	realloc_tests("NoNano", false);
 }
 
-T_DECL(realloc_perf_nanov1, "realloc with nanoV1",
-	   T_META_TAG_PERF, T_META_ENVVAR("MallocNanoZone=V1"))
-{
-#if CONFIG_NANOZONE
-	realloc_tests("Nanov1", true);
-#else // CONFIG_NANOZONE
-	T_SKIP("Nano allocator not configured");
-#endif // CONFIG_NANOZONE
-}
-
 T_DECL(realloc_perf_nanov2, "realloc with nanoV2",
 	   T_META_TAG_PERF, T_META_ENVVAR("MallocNanoZone=V2"))
 {