arm: mvebu: turris_{omnia, mox}: Don't print model two times

Since commit 8cd4bf7dc9ba ("turris: Use checkboard() instead of
show_board_info()") the model is show two times during boot:
  Model: Turris Omnia
  Model: Turris Omnia

This is because the common function show_board_info() shows it, and
Turris' checkboard() also does.

Remove the second print.

Fixes: 8cd4bf7dc9ba ("turris: Use checkboard() instead of show_board_info()")
Signed-off-by: Marek BehĂșn <kabel@kernel.org>
Reviewed-by: Stefan Roese <sr@denx.de>
diff --git a/board/CZ.NIC/turris_mox/turris_mox.c b/board/CZ.NIC/turris_mox/turris_mox.c
index 3489bdd..1a2f60e 100644
--- a/board/CZ.NIC/turris_mox/turris_mox.c
+++ b/board/CZ.NIC/turris_mox/turris_mox.c
@@ -565,13 +565,10 @@
 int checkboard(void)
 {
 	int i, ret, board_version, ram_size, is_sd;
-	const char *pub_key, *model;
+	const char *pub_key;
 	const u8 *topology;
 	u64 serial_number;
 
-	model = fdt_getprop(gd->fdt_blob, 0, "model", NULL);
-	printf("Model: %s\n", model);
-
 	ret = mbox_sp_get_board_info(&serial_number, NULL, NULL, &board_version,
 				     &ram_size, NULL);
 	if (ret < 0) {