mpc86xx: delete unused MPC86xx_DDR_SDRAM_CLK_CNTL define

This is an orphaned legacy leftover that is just polluting
the config file namespace.

Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>

include/configs/MPC8610HPCD.h

@@ -102,8 +102,6 @@
 #define CONFIG_SYS_MAX_DDR_BAT_SIZE	0x80000000	/* BAT mapping size */
 #define CONFIG_VERY_BIG_RAM
 
-#define MPC86xx_DDR_SDRAM_CLK_CNTL
-
 #define CONFIG_NUM_DDR_CONTROLLERS	1
 #define CONFIG_DIMM_SLOTS_PER_CTLR	1
 #define CONFIG_CHIP_SELECTS_PER_CTRL	(2 * CONFIG_DIMM_SLOTS_PER_CTLR)

include/configs/MPC8641HPCN.h

@@ -141,8 +141,6 @@ extern unsigned long get_board_sys_clk(unsigned long dummy);
 #define CONFIG_SYS_MAX_DDR_BAT_SIZE	0x80000000	/* BAT mapping size */
 #define CONFIG_VERY_BIG_RAM
 
-#define MPC86xx_DDR_SDRAM_CLK_CNTL
-
 #define CONFIG_NUM_DDR_CONTROLLERS	2
 #define CONFIG_DIMM_SLOTS_PER_CTLR	2
 #define CONFIG_CHIP_SELECTS_PER_CTRL	(2 * CONFIG_DIMM_SLOTS_PER_CTLR)

include/configs/sbc8641d.h

@@ -121,8 +121,6 @@
 #define CONFIG_SYS_MAX_DDR_BAT_SIZE	0x80000000	/* BAT mapping size */
 #define CONFIG_VERY_BIG_RAM
 
-#define MPC86xx_DDR_SDRAM_CLK_CNTL
-
 #define CONFIG_NUM_DDR_CONTROLLERS	2
 #define CONFIG_DIMM_SLOTS_PER_CTLR	2
 #define CONFIG_CHIP_SELECTS_PER_CTRL	(2 * CONFIG_DIMM_SLOTS_PER_CTLR)