hush: remove TODO comment itself :)

shell/hush.c

@@ -147,8 +147,7 @@
 static const char hush_version_str[] ALIGN1 = "HUSH_VERSION="BB_VER;
 
 /* This supports saving pointers malloced in vfork child,
- * to be freed in the parent. One pointer is saved in
- * G.argv_from_re_execing global var instead. TODO: unify.
+ * to be freed in the parent.
  */
 #if !BB_MMU
 typedef struct nommu_save_t {