arm/km: remove board KMCOGE3UN

This target is out of maintenance and can be removed.

Signed-off-by: Holger Brunck <holger.brunck@ch.abb.com>
CC: Stefan Roese <sr@denx.de>
CC: Valentin Longchamp <valentin.longchamp@ch.abb.com>
Reviewed-by: Stefan Roese <sr@denx.de>
diff --git a/include/configs/km_kirkwood.h b/include/configs/km_kirkwood.h
index 6fce83c..064097a 100644
--- a/include/configs/km_kirkwood.h
+++ b/include/configs/km_kirkwood.h
@@ -51,14 +51,6 @@
 #undef CONFIG_SYS_KWD_CONFIG
 #define CONFIG_SYS_KWD_CONFIG $(CONFIG_BOARDDIR)/kwbimage_128M16_1.cfg
 
-/* KM_MGCOGE3UN */
-#elif defined(CONFIG_KM_MGCOGE3UN)
-#define CONFIG_HOSTNAME			"mgcoge3un"
-#undef CONFIG_SYS_KWD_CONFIG
-#define CONFIG_SYS_KWD_CONFIG $(CONFIG_BOARDDIR)/kwbimage-memphis.cfg
-#define CONFIG_KM_BOARD_EXTRA_ENV	"waitforne=true\0"
-#define CONFIG_KM_DISABLE_PCIE
-
 /* KMCOGE5UN */
 #elif defined(CONFIG_KM_COGE5UN)
 #undef	CONFIG_SYS_KWD_CONFIG
@@ -113,7 +105,7 @@
 
 #ifdef CONFIG_KM_PIGGY4_88E6061
 /*
- * Some keymile boards like mgcoge3un have their PIGGY4 connected via
+ * Some keymile boards like mgcoge5un have their PIGGY4 connected via
  * an Marvell 88E6061 simple switch.
  * In this case we have to change the default settings for the
  * ethernet phy connected to the kirkwood.