Do not order services after syslog.target

With recent (>202) systemd release, syslog.target is no longer provided:
services are ensured they are started after logging socket is setup, so
journal will capture all syslog messages and will store them and forward
them to syslog implementation (if running).

Patch from Ville Skyttä.

prog/init/lm_sensors.service

@@ -1,6 +1,5 @@
 [Unit]
 Description=Initialize hardware monitoring sensors
-After=syslog.target
 
 [Service]
 EnvironmentFile=/etc/sysconfig/lm_sensors

prog/init/sensord.service

@@ -1,7 +1,6 @@
 [Unit]
 Description=Log hardware monitoring data
 After=lm_sensors.service
-After=syslog.target
 
 [Service]
 EnvironmentFile=/etc/sysconfig/sensord