MPC837XERDB: Remove CONFIG_MPC837XERDB

CONFIG_MPC837XERDB is unused, and TARGET_MPC837XERDB could replace it.

Hence, get rid of CONFIG_MPC837XERDB.
Signed-off-by: NMario Six <mario.six@gdsys.cc>

include/configs/MPC837XERDB.h

@@ -12,7 +12,6 @@
  * High Level Configuration Options
  */
 #define CONFIG_E300		1 /* E300 family */
-#define CONFIG_MPC837XERDB	1
 
 #define CONFIG_HWCONFIG
 

scripts/config_whitelist.txt

@@ -1219,7 +1219,6 @@ CONFIG_MMC_SPI_SPEED
 CONFIG_MMC_SUNXI_SLOT
 CONFIG_MMU
 CONFIG_MONITOR_IS_IN_RAM
-CONFIG_MPC837XERDB
 CONFIG_MPC83XX_GPIO
 CONFIG_MPC83XX_GPIO_0_INIT_DIRECTION
 CONFIG_MPC83XX_GPIO_0_INIT_OPEN_DRAIN