MPC8313ERDB: Remove CONFIG_MPC8313ERDB

CONFIG_MPC8313ERDB is unused, and
TARGET_MPC8313ERDB_NAND/TARGET_MPC8313ERDB_NOR Kconfig could replace it.

Hence, get rid of CONFIG_MPC8313ERDB.

Signed-off-by: Mario Six <mario.six@gdsys.cc>
diff --git a/include/configs/MPC8313ERDB_NAND.h b/include/configs/MPC8313ERDB_NAND.h
index 976b685..31c2900 100644
--- a/include/configs/MPC8313ERDB_NAND.h
+++ b/include/configs/MPC8313ERDB_NAND.h
@@ -13,7 +13,6 @@
  * High Level Configuration Options
  */
 #define CONFIG_E300		1
-#define CONFIG_MPC8313ERDB	1
 
 #define CONFIG_SPL_INIT_MINIMAL
 #define CONFIG_SPL_FLUSH_IMAGE
diff --git a/include/configs/MPC8313ERDB_NOR.h b/include/configs/MPC8313ERDB_NOR.h
index 81e92fb..afb0586 100644
--- a/include/configs/MPC8313ERDB_NOR.h
+++ b/include/configs/MPC8313ERDB_NOR.h
@@ -13,7 +13,6 @@
  * High Level Configuration Options
  */
 #define CONFIG_E300		1
-#define CONFIG_MPC8313ERDB	1
 
 #ifndef CONFIG_SYS_MONITOR_BASE
 #define CONFIG_SYS_MONITOR_BASE	CONFIG_SYS_TEXT_BASE	/* start of monitor */
diff --git a/scripts/config_whitelist.txt b/scripts/config_whitelist.txt
index 7c3256a..d70b9ff 100644
--- a/scripts/config_whitelist.txt
+++ b/scripts/config_whitelist.txt
@@ -1219,7 +1219,6 @@
 CONFIG_MMC_SUNXI_SLOT
 CONFIG_MMU
 CONFIG_MONITOR_IS_IN_RAM
-CONFIG_MPC8313ERDB
 CONFIG_MPC8315ERDB
 CONFIG_MPC837XEMDS
 CONFIG_MPC837XERDB