src/mainboard: Drop redundant CHIP_NAME again for new ports

Since commit »Drop redundant CHIP_NAME in mainboard.c« (a93c3fe7) [1]
`CHIP_NAME` is unneeded for mainboards as the name is composed
automatically in `src/devices/root_device.c` from the strings in
Kconfig.

Unfortunately the ports for Google Butterfly, Link and Parrot as
as well as IEI PM-LX2-800-R10 introduced CHIP_NAME again. So drop
it again too.

[1] http://review.coreboot.org/1635

Change-Id: Ice7577a2a5c6070e196f2647c440b7a8e140e27e
Signed-off-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-on: http://review.coreboot.org/2708
Tested-by: build bot (Jenkins)
Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>

src/mainboard/google/butterfly/mainboard.c

@@ -502,6 +502,5 @@ static void mainboard_enable(device_t dev)
 }
 
 struct chip_operations mainboard_ops = {
-	CHIP_NAME("Google Butterfly Chromebook")
 	.enable_dev = mainboard_enable,
 };

src/mainboard/google/link/mainboard.c

@@ -351,6 +351,5 @@ static void mainboard_enable(device_t dev)
 }
 
 struct chip_operations mainboard_ops = {
-	CHIP_NAME("Google Link Chromebook")
 	.enable_dev = mainboard_enable,
 };

src/mainboard/google/parrot/mainboard.c

@@ -323,6 +323,5 @@ static void mainboard_enable(device_t dev)
 }
 
 struct chip_operations mainboard_ops = {
-	CHIP_NAME("Google Parrot Chromebook")
 	.enable_dev = mainboard_enable,
 };

src/mainboard/iei/pm-lx2-800-r10/mainboard.c

@@ -47,6 +47,5 @@ static void mainboard_enable(struct device *dev)
 }
 
 struct chip_operations mainboard_ops = {
-	CHIP_NAME("IEI PM-LX2-800-R10 Mainboard")
 	.enable_dev = mainboard_enable,
 };