patch 7.4.948

Problem:    Can't build when the insert_expand feature is disabled.
Solution:   Add #ifdefs. (Dan Pasanen, closes #499)

src/eval.c

@@ -8748,7 +8748,9 @@ call_func(funcname, len, rettv, argcount, argvars, firstline, lastline,
 		     * redo buffer.
 		     */
 		    save_search_patterns();
+#ifdef FEAT_INS_EXPAND
 		    if (!ins_compl_active())
+#endif
 		    {
 			saveRedobuff();
 			did_save_redo = TRUE;