[BREAKING] system/dd: using system dd to instead nsh dd, avoid duplicate code

nshlib/CMakeLists.txt

@@ -34,7 +34,6 @@ if(CONFIG_NSH_LIBRARY)
     nsh_system.c
     nsh_command.c
     nsh_fscmds.c
-    nsh_ddcmd.c
     nsh_proccmds.c
     nsh_mmcmds.c
     nsh_timcmds.c

nshlib/Kconfig

@@ -345,10 +345,6 @@ config NSH_DISABLE_DATE
 	bool "Disable date"
 	default DEFAULT_SMALL || !RTC
 
-config NSH_DISABLE_DD
-	bool "Disable dd"
-	default DEFAULT_SMALL
-
 config NSH_DISABLE_DF
 	bool "Disable df"
 	default DEFAULT_SMALL
@@ -787,11 +783,6 @@ config NSH_VARS
 		               variables                   variables
 		============== =========================== ===========================
 
-config NSH_CMDOPT_DD_STATS
-	bool "dd: Support transfer statistics"
-	default n
-	depends on !NSH_DISABLE_DD
-
 config NSH_CODECS_BUFSIZE
 	int "File buffer size used by CODEC commands"
 	default 128

nshlib/Makefile

@@ -25,7 +25,7 @@ include $(APPDIR)/Make.defs
 # NSH Library
 
 CSRCS  = nsh_init.c nsh_parse.c nsh_console.c nsh_script.c nsh_system.c
-CSRCS += nsh_command.c nsh_fscmds.c nsh_ddcmd.c nsh_proccmds.c nsh_mmcmds.c
+CSRCS += nsh_command.c nsh_fscmds.c nsh_proccmds.c nsh_mmcmds.c
 CSRCS += nsh_timcmds.c nsh_envcmds.c nsh_syscmds.c nsh_dbgcmds.c nsh_prompt.c
 
 CSRCS += nsh_session.c

nshlib/nsh.h

@@ -975,9 +975,6 @@ int cmd_irqinfo(FAR struct nsh_vtbl_s *vtbl, int argc, FAR char **argv);
 #ifndef CONFIG_NSH_DISABLE_CMP
   int cmd_cmp(FAR struct nsh_vtbl_s *vtbl, int argc, FAR char **argv);
 #endif
-#ifndef CONFIG_NSH_DISABLE_DD
-  int cmd_dd(FAR struct nsh_vtbl_s *vtbl, int argc, FAR char **argv);
-#endif
 #ifndef CONFIG_NSH_DISABLE_HEXDUMP
   int cmd_hexdump(FAR struct nsh_vtbl_s *vtbl, int argc, FAR char **argv);
 #endif

nshlib/nsh_command.c

@@ -185,12 +185,6 @@ static const struct cmdmap_s g_cmdmap[] =
           1, 4, "[-s \"MMM DD HH:MM:SS YYYY\"] [-u] [+format]"),
 #endif
 
-#ifndef CONFIG_NSH_DISABLE_DD
-  CMD_MAP("dd",       cmd_dd,       1, 7,
-    "if=<infile> of=<outfile> [bs=<sectsize>] [count=<sectors>] "
-    "[skip=<sectors>] [seek=<sectors>] [verify] [conv=<nocreat,notrunc>]"),
-#endif
-
 #if defined(CONFIG_NET) && defined(CONFIG_NET_ROUTE) && !defined(CONFIG_NSH_DISABLE_DELROUTE)
   CMD_MAP("delroute", cmd_delroute, 2, 3, "<target> [<netmask>]"),
 #endif