patch 8.1.0246: build failure without the +eval feature

Problem:    Build failure without the +eval feature.
Solution:   Add #ifdef

Author: brammool

src/edit.c

@@ -1722,19 +1722,23 @@ ins_redraw(
     {
 	aco_save_T	aco;
 
+#ifdef FEAT_EVAL
 	// Sync undo when the autocommand calls setline() or append(), so that
 	// it can be undone separately.
 	u_sync_once = 2;
+#endif
 
 	// save and restore curwin and curbuf, in case the autocmd changes them
 	aucmd_prepbuf(&aco, curbuf);
 	apply_autocmds(EVENT_TEXTCHANGEDI, NULL, NULL, FALSE, curbuf);
 	aucmd_restbuf(&aco);
 	curbuf->b_last_changedtick = CHANGEDTICK(curbuf);
 
+#ifdef FEAT_EVAL
 	if (u_sync_once == 1)
 	    ins_need_undo = TRUE;
 	u_sync_once = 0;
+#endif
     }
 
 #ifdef FEAT_INS_EXPAND

src/version.c

@@ -794,6 +794,8 @@ static char *(features[]) =
 
 static int included_patches[] =
 {   /* Add new patch number below this line */
+/**/
+    246,
 /**/
     245,
 /**/