imx: discard duplicated MXC_OCOTP and CMD_FUSE

We have CONFIG_MXC_OCOTP and CONFIG_CMD_FUSE in mx6_common.h,
discard duplicated macro definitions in board header files.

Signed-off-by: Peng Fan <Peng.Fan@freescale.com>
Cc: Stefano Babic <sbabic@denx.de>
Cc: Peter Robinson <pbrobinson@gmail.com>
Cc: Otavio Salvador <otavio@ossystems.com.br>

include/configs/mx6ul_14x14_evk.h

@@ -34,11 +34,6 @@
 #define CONFIG_MXC_UART
 #define CONFIG_MXC_UART_BASE		UART1_BASE
 
-#define CONFIG_CMD_FUSE
-#ifdef CONFIG_CMD_FUSE
-#define CONFIG_MXC_OCOTP
-#endif
-
 /* MMC Configs */
 #ifdef CONFIG_FSL_USDHC
 #define CONFIG_SYS_FSL_ESDHC_ADDR	USDHC2_BASE_ADDR