Make tsd cleanup functions optional, remove noop cleanup functions.

src/jemalloc.c

@@ -644,20 +644,6 @@ arena_choose_hard(tsd_t *tsd, bool internal)
 	return (ret);
 }
 
-void
-thread_allocated_cleanup(tsd_t *tsd)
-{
-
-	/* Do nothing. */
-}
-
-void
-thread_deallocated_cleanup(tsd_t *tsd)
-{
-
-	/* Do nothing. */
-}
-
 void
 iarena_cleanup(tsd_t *tsd)
 {
@@ -693,20 +679,6 @@ arenas_tdata_cleanup(tsd_t *tsd)
 	}
 }
 
-void
-narenas_tdata_cleanup(tsd_t *tsd)
-{
-
-	/* Do nothing. */
-}
-
-void
-arenas_tdata_bypass_cleanup(tsd_t *tsd)
-{
-
-	/* Do nothing. */
-}
-
 static void
 stats_print_atexit(void)
 {

src/rtree.c

@@ -285,10 +285,3 @@ rtree_elm_witness_release(tsdn_t *tsdn, const rtree_t *rtree,
 	witness_unlock(tsdn, witness);
 	rtree_elm_witness_dalloc(tsdn_tsd(tsdn), witness, elm);
 }
-
-void
-rtree_elm_witnesses_cleanup(tsd_t *tsd)
-{
-
-	/* Do nothing. */
-}

src/tcache.c

@@ -404,13 +404,6 @@ tcache_cleanup(tsd_t *tsd)
 	}
 }
 
-void
-tcache_enabled_cleanup(tsd_t *tsd)
-{
-
-	/* Do nothing. */
-}
-
 void
 tcache_stats_merge(tsdn_t *tsdn, tcache_t *tcache, arena_t *arena)
 {

src/tsd.c

@@ -77,9 +77,14 @@ tsd_cleanup(void *arg)
 		/* Do nothing. */
 		break;
 	case tsd_state_nominal:
-#define	O(n, t)								\
+#define	MALLOC_TSD_cleanup_yes(n, t)					\
 		n##_cleanup(tsd);
+#define	MALLOC_TSD_cleanup_no(n, t)
+#define	O(n, t, c)							\
+		MALLOC_TSD_cleanup_##c(n, t)
 MALLOC_TSD
+#undef MALLOC_TSD_cleanup_yes
+#undef MALLOC_TSD_cleanup_no
 #undef O
 		tsd->state = tsd_state_purgatory;
 		tsd_set(tsd);

src/witness.c

@@ -103,13 +103,6 @@ witnesses_cleanup(tsd_t *tsd)
 	/* Do nothing. */
 }
 
-void
-witness_fork_cleanup(tsd_t *tsd)
-{
-
-	/* Do nothing. */
-}
-
 void
 witness_prefork(tsd_t *tsd)
 {