gdb/ChangeLog:
	* tui/tui-data.h (struct tui_win_info)
	<detail::opaque>: Remove.
	* tui/tui-data.c (init_win_info): Remove assignment.
+2018-09-06  Simon Marchi  <simon.marchi@ericsson.com>
+
+       * tui/tui-data.h (struct tui_win_info)
+       <detail::opaque>: Remove.
+       * tui/tui-data.c (init_win_info): Remove assignment.
+
 2018-09-05  Tom Tromey  <tom@tromey.com>
 
        * warning.m4 (AM_GDB_WARNINGS): Add -Wformat when testing
 
       break;
     case CMD_WIN:
       break;
-    default:
-      win_info->detail.opaque = NULL;
-      break;
     }
 }
 
 
     struct tui_source_info source_info;
     struct tui_data_info data_display_info;
     struct tui_command_info command_info;
-    void *opaque;
   }
   detail;
   int can_highlight;   /* Can this window ever be highlighted?  */