kirkwood: sheevaplug: fix multiple defines

Signed-off-by: GĂ©rald Kerma <drEagle@doukki.net>
Reviewed-by: Luka Perkov <luka.perkov@sartura.hr>
diff --git a/include/configs/sheevaplug.h b/include/configs/sheevaplug.h
index 3ebc989..589655a 100644
--- a/include/configs/sheevaplug.h
+++ b/include/configs/sheevaplug.h
@@ -142,6 +142,5 @@
 #define CONFIG_MTD_DEVICE               /* needed for mtdparts commands */
 #define CONFIG_MTD_PARTITIONS
 #define CONFIG_CMD_MTDPARTS
-#define CONFIG_LZO
 
 #endif /* _CONFIG_SHEEVAPLUG_H */