[docker] let the ssh daemon speak for itself and drop the syslog daemon (#6529)

The sshd flag `-e` instructs sshd to output any logs to stderr instead
 of the syslog. Redirect this output to stdout then.

Signed-off-by: Jakob Ackermann <das7pad@outlook.com>

docker/etc/s6/openssh/run

@@ -2,5 +2,5 @@
 [[ -f ./setup ]] && source ./setup
 
 pushd /root > /dev/null
-    exec su-exec root /usr/sbin/sshd -D
+    exec su-exec root /usr/sbin/sshd -D -e 2>&1
 popd

docker/etc/s6/syslogd/finish

@@ -1,2 +0,0 @@
-#!/bin/bash
-exit 0

docker/etc/s6/syslogd/run

@@ -1,6 +0,0 @@
-#!/bin/bash
-[[ -f ./setup ]] && source ./setup
-
-pushd /root > /dev/null
-    exec su-exec root /sbin/syslogd -nS -O-
-popd

docker/etc/s6/syslogd/setup

@@ -1 +0,0 @@
-#!/bin/bash