vt: remove redundant check on vc_mode in con_font_set()

Previous commit edab558 ("vt: sort out locking for font handling")
move the vc_mode check into console_lock protect, but forget to remove the
old check in con_font_set(). Just remove the redundant check.

Signed-off-by: Wang Liang <wangliang74@huawei.com>
Link: https://lore.kernel.org/r/20250904023345.13731-1-wangliang74@huawei.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

Author: Wang Liang

drivers/tty/vt/vt.c

@@ -4885,8 +4885,6 @@ static int con_font_set(struct vc_data *vc, const struct console_font_op *op)
 	int size;
 	unsigned int vpitch = op->op == KD_FONT_OP_SET_TALL ? op->height : 32;
 
-	if (vc->vc_mode != KD_TEXT)
-		return -EINVAL;
 	if (!op->data)
 		return -EINVAL;
 	if (op->charcount > max_font_glyphs)