remove commenting out unused .model lines

from comment_out_unused_subckt_models().
This now handled by inp_rem_unused_models()
taking appropriate scoping into account.

src/frontend/inpcom.c

@@ -1985,7 +1985,7 @@ static const char *nlist_find(const struct nlist *nlist, const char *name)
     return NULL;
 }
 
-
+#if 0
 static const char *nlist_model_find(
         const struct nlist *nlist, const char *name)
 {
@@ -1995,7 +1995,7 @@ static const char *nlist_model_find(
             return nlist->names[i];
     return NULL;
 }
-
+#endif
 
 static void nlist_adjoin(struct nlist *nlist, char *name)
 {
@@ -2201,6 +2201,7 @@ static void comment_out_unused_subckt_models(struct card *start_card)
 
         if (remove_subckt)
             *line = '*';
+#if 0
         else if (has_models &&
                 (ciprefix(".model", line) || ciprefix(".cmodel", line))) {
             char *model_type = get_model_type(line);
@@ -2219,6 +2220,7 @@ static void comment_out_unused_subckt_models(struct card *start_card)
             tfree(model_type);
             tfree(model_name);
         }
+#endif
     }
 
     nlist_destroy(used_subckts);