hush: Remove default CONFIG_SYS_PROMPT_HUSH_PS2 setting from board files

There is no reason to define default option for this macro which is
already done in common/cli_hush.c.

  86 #ifndef CONFIG_SYS_PROMPT_HUSH_PS2
  87 #define CONFIG_SYS_PROMPT_HUSH_PS2      "> "
  88 #endif

Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Reviewed-by: York Sun <york.sun@nxp.com>

include/configs/ls1021aiot.h

@@ -209,8 +209,6 @@
 /*
  * Miscellaneous configurable options
  */
-#define CONFIG_SYS_PROMPT_HUSH_PS2	"> "
-
 #define CONFIG_CMD_GREPENV
 #define CONFIG_CMD_MEMINFO
 

include/configs/ls1088a_common.h

@@ -215,7 +215,6 @@ unsigned long long get_qixis_addr(void);
 #define CONFIG_SYS_CBSIZE		512	/* Console I/O Buffer Size */
 #define CONFIG_SYS_PBSIZE		(CONFIG_SYS_CBSIZE + \
 					sizeof(CONFIG_SYS_PROMPT) + 16)
-#define CONFIG_SYS_PROMPT_HUSH_PS2	"> "
 #define CONFIG_SYS_BARGSIZE		CONFIG_SYS_CBSIZE /* Boot args buffer */
 #define CONFIG_SYS_MAXARGS		64	/* max command args */
 

include/configs/s32v234evb.h

@@ -148,7 +148,6 @@
 #include <config_distro_bootcmd.h>
 
 /* Miscellaneous configurable options */
-#define CONFIG_SYS_PROMPT_HUSH_PS2	"> "
 #define CONFIG_SYS_PROMPT		"=> "
 
 #define CONFIG_SYS_MEMTEST_START	(DDR_BASE_ADDR)

include/configs/tplink_wdr4300.h

@@ -44,7 +44,6 @@
 #define CONFIG_SYS_MAXARGS	32		/* Max number of command args */
 #define CONFIG_SYS_BARGSIZE	CONFIG_SYS_CBSIZE
 						/* Boot argument buffer size */
-#define CONFIG_SYS_PROMPT_HUSH_PS2	"> "
 
 /* USB, USB storage, USB ethernet */
 #define CONFIG_EHCI_MMIO_BIG_ENDIAN