arm: kirkwood: Remove duplicate definition from dreamplug.h

CONFIG_DISPLAY_CPUINFO is already defined in mv-common.h

Signed-off-by: Quentin Armitage <quentin@armitage.org.uk>
diff --git a/include/configs/dreamplug.h b/include/configs/dreamplug.h
index 0c01209..97b3def 100644
--- a/include/configs/dreamplug.h
+++ b/include/configs/dreamplug.h
@@ -131,9 +131,4 @@
 
 #define CONFIG_SYS_ALT_MEMTEST
 
-/*
- * display enhanced info about the cpu at boot.
- */
-#define CONFIG_DISPLAY_CPUINFO
-
 #endif /* _CONFIG_DREAMPLUG_H */