Cleanup nand_info[] declaration.

The nand_info array is declared as extern in several .c files.
Those days, nand.h contains a reference to the array, so there is
no need to declare it elsewhere.

Signed-off-by: Stelian Pop <stelian@popies.net>
Signed-off-by: Scott Wood <scottwood@freescale.com>

common/cmd_nand.c

@@ -37,8 +37,6 @@ int find_dev_and_part(const char *id, struct mtd_device **dev,
 		u8 *part_num, struct part_info **part);
 #endif
 
-extern nand_info_t nand_info[];       /* info for NAND chips */
-
 static int nand_dump_oob(nand_info_t *nand, ulong off)
 {
 	return 0;