remove syslog-ng (it is now in the baseimage)

Dockerfile

@@ -6,7 +6,6 @@ RUN apk add --no-cache \
     nginx \
     postgresql-client \
     aspell \
-    syslog-ng \
     ca-certificates \
     php7 \
     php7-imap \

rootfs/etc/services.d/syslog-ng/run

@@ -1,4 +0,0 @@
-#!/usr/bin/with-contenv sh
-
-cd /var
-exec syslog-ng --foreground

rootfs/etc/syslog-ng/syslog-ng.conf

@@ -1,24 +0,0 @@
-@version: 3.7
-
-options {
-    stats_freq (0);
-    time_reopen (10);
-    chain_hostnames (off);
-    use_dns (no);
-    use_fqdn (no);
-    keep_hostname (yes);
-};
-
-source s_local {
-    unix-dgram("/dev/log");
-    internal();
-};
-
-destination catchall {
-	pipe("/dev/stdout");
-};
-
-log {
-    source(s_local);
-    destination(catchall);
-};