mainboard: Remove empty mainboard.c files

All the deleted mainboard files contain no code besides some print
statements denoting, that the init is executed.

If such statements are desired, this should be done in common code so it
does not have to be added to each mainboard.

Therefore, also delete files with just print statements.

Change-Id: I379e4b1e1b1725648c6231bc6954ac3cc655a596
Signed-off-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-on: http://review.coreboot.org/12355
Tested-by: build bot (Jenkins)
Reviewed-by: Alexandru Gagniuc <mr.nuke.me@gmail.com>
Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>

src/mainboard/emulation/qemu-armv7/mainboard.c

@@ -1,26 +0,0 @@
-/*
- * This file is part of the coreboot project.
- *
- * Copyright (C) 2013 Google, Inc.
- *
- * This software is licensed under the terms of the GNU General Public
- * License version 2, as published by the Free Software Foundation, and
- * may be copied, distributed, and modified under those terms.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
-
-#include <console/console.h>
-#include <device/device.h>
-
-static void mainboard_enable(device_t dev)
-{
-	printk(BIOS_INFO, "Enable qemu/armv7 device...\n");
-}
-
-struct chip_operations mainboard_ops = {
-	.enable_dev = mainboard_enable,
-};