remove debugging printf

src/memory/main_allocations.c

@@ -58,7 +58,6 @@ void main_allocations(struct stardata_t ** const new_stardata,
      */
     if(preferences!=NULL && *preferences==NULL)
     {
-        printf("prefs != NULL but prefs = NULL\n");
         *preferences = Calloc(sizeof(struct preferences_t),1);
         (*new_stardata)->preferences = *preferences;
     }