Fix regression in package.ape build tool

Author: jart

libc/runtime/grow.c renamed to libc/mem/grow.c

@@ -19,7 +19,6 @@
 #include "ape/sections.internal.h"
 #include "libc/assert.h"
 #include "libc/fmt/conv.h"
-#include "libc/intrin/weaken.h"
 #include "libc/macros.h"
 #include "libc/mem/mem.h"
 #include "libc/runtime/runtime.h"
@@ -53,7 +52,7 @@ bool __grow(void *pp, size_t *capacity, size_t itemsize, size_t extra) {
   n1 = *capacity;
   n2 = (*p ? n1 + (n1 >> 1) : MAX(4, INITIAL_CAPACITY / itemsize)) + extra;
   if (!ckd_mul(&t1, n1, itemsize) && !ckd_mul(&t2, n2, itemsize)) {
-    if (_weaken(realloc) && (p2 = _weaken(realloc)(p1, ROUNDUP(t2, 32)))) {
+    if ((p2 = realloc(p1, ROUNDUP(t2, 32)))) {
       if (!p1 && *p)
         memcpy(p2, *p, t1);
       bzero((char *)p2 + t1, t2 - t1);