console: Don't perform test for CON_BRL flag

We don't call braille_register_console() without CON_BRL flag set.
And the _braille_unregister_console() already tests for console to have
CON_BRL flag. No need to repeat this in braille_unregister_console().

Drop the repetitive checks from Braille console driver.

Link: http://lkml.kernel.org/r/[e-mail]
To: [e-mail]
To: Steven Rostedt <[e-mail]>
Signed-off-by: Andy Shevchenko <[e-mail]>
Reviewed-by: Petr Mladek <[e-mail]>
Reviewed-by: Sergey Senozhatsky <[e-mail]>
Signed-off-by: Petr Mladek <[e-mail]>

drivers/accessibility/braille/braille_console.c

···
 {
 	int ret;
 
-	if (!(console->flags & CON_BRL))
-		return 0;
 	if (!console_options)
 		/* Only support VisioBraille for now */
 		console_options = "57600o8";
···
 {
 	if (braille_co != console)
 		return -EINVAL;
-	if (!(console->flags & CON_BRL))
-		return 0;
 	unregister_keyboard_notifier(&keyboard_notifier_block);
 	unregister_vt_notifier(&vt_notifier_block);
 	braille_co = NULL;