connectd: do dev_disconnect logic.

As connectd handles more packets itself, or diverts them to/from gossipd,
it's the only place we can implement the dev_disconnect logic.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>

common/subdaemon.c

@@ -1,5 +1,4 @@
 #include "config.h"
-#include <common/dev_disconnect.h>
 #include <common/status.h>
 #include <common/subdaemon.h>
 #include <common/version.h>
@@ -33,14 +32,5 @@ void subdaemon_setup(int argc, char *argv[])
 
 	daemon_maybe_debug(argv);
 
-#if DEVELOPER
-	for (int i = 1; i < argc; i++) {
-		if (strstarts(argv[i], "--dev-disconnect=")) {
-			dev_disconnect_init(atoi(argv[i]
-						 + strlen("--dev-disconnect=")));
-		}
-	}
-#endif
-
 	daemon_setup(argv[0], status_backtrace_print, status_backtrace_exit);
 }