patch 8.1.1739: deleted match highlighting not updated in other window

Problem:    Deleted match highlighting not updated in other window.
Solution:   Mark the window for refresh. (closes #4720)  Also fix that
            ambi-width check clears with wrong attributes.

src/highlight.c

@@ -3912,7 +3912,7 @@ match_delete(win_T *wp, int id, int perr)
 	rtype = VALID;
     }
     vim_free(cur);
-    redraw_later(rtype);
+    redraw_win_later(wp, rtype);
     return 0;
 }