patch 8.0.1603: cannot build with +terminal but without +menu

Problem:    Cannot build with +terminal but without +menu.
Solution:   Add #ifdef. (Damien)
diff --git a/src/terminal.c b/src/terminal.c
index 43a2a31..1bef460 100644
--- a/src/terminal.c
+++ b/src/terminal.c
@@ -2738,8 +2738,11 @@
 	else
 	    pos.col = 0;
 
-	screen_line(wp->w_winrow + pos.row + winbar_height(wp),
-				    wp->w_wincol, pos.col, wp->w_width, FALSE);
+	screen_line(wp->w_winrow + pos.row
+#ifdef FEAT_MENU
+				+ winbar_height(wp)
+#endif
+				, wp->w_wincol, pos.col, wp->w_width, FALSE);
     }
     term->tl_dirty_row_start = MAX_ROW;
     term->tl_dirty_row_end = 0;