help: help now works on configuration commands

help would not show help for commands when the command
interpreter was in the wrong mode, which means that
e.g. "help newtap" didn't work, it wouldn't show the
"jtag newtap" help as it was a configuration command.

Signed-off-by: Øyvind Harboe <oyvind.harboe@zylin.com>

src/helper/command.c

@@ -956,9 +956,6 @@ static void command_help_show_wrap(const char *str, unsigned n, unsigned n2)
 static COMMAND_HELPER(command_help_show, struct command *c, unsigned n,
 		bool show_help, const char *match)
 {
-	if (!command_can_run(CMD_CTX, c))
-		return ERROR_OK;
-
 	char *cmd_name = command_name(c, ' ');
 	if (NULL == cmd_name)
 		return -ENOMEM;