sdl2: drop qemu_input_event_send_key_qcode call

qkbd_state_key_event() does that for us.

Fixes: 07333e1ca3 kbd-state: use state tracker for sdl2
Reported-by: BALATON Zoltan <balaton@eik.bme.hu>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Tested-by: BALATON Zoltan <balaton@eik.bme.hu>
Message-id: 20190208072744.10687-1-kraxel@redhat.com

ui/sdl2-input.c

@@ -54,8 +54,5 @@ void sdl2_process_key(struct sdl2_console *scon,
                 break;
             }
         }
-    } else {
-        qemu_input_event_send_key_qcode(con, qcode,
-                                        ev->type == SDL_KEYDOWN);
     }
 }