SC: Remove global data.

The global data is mostly only used at initialization, or for easy access to
values we could compute statically.  Instead of consuming that space (and
risking TLB misses), we can just pass around a pointer to stack data during
bootstrapping.

src/sz.c

@@ -2,7 +2,7 @@
 #include "jemalloc/internal/sz.h"
 
 JEMALLOC_ALIGNED(CACHELINE)
-size_t sz_pind2sz_tab[SC_NPSIZES_MAX+1];
+size_t sz_pind2sz_tab[SC_NPSIZES+1];
 
 static void
 sz_boot_pind2sz_tab(const sc_data_t *sc_data) {
@@ -15,7 +15,9 @@ sz_boot_pind2sz_tab(const sc_data_t *sc_data) {
 			pind++;
 		}
 	}
-	sz_pind2sz_tab[pind] = sc_data->large_maxclass + PAGE;
+	for (int i = pind; i <= (int)SC_NPSIZES; i++) {
+		sz_pind2sz_tab[pind] = sc_data->large_maxclass + PAGE;
+	}
 }
 
 JEMALLOC_ALIGNED(CACHELINE)