Remove unused options from valence config file.

Removed log file setting and conductor section.
Valence API and Controller have their separate log files defined
in the upstart script. We don't have a conductor component at the
moment.

Change-Id: I77da814d896b9e52dece5a1bfb941798e739604c
Closes-Bug: #1634342

etc/valence/valence.conf.sample

@@ -9,10 +9,9 @@ auth_strategy=noauth
 
 # Log to this file. Make sure the user running rsc has
 # permissions to write to this file!
-log_file = rsc.log
 
 
-log_dir=/var/log/rsc
+log_dir=/var/log/valence
 rpc_response_timeout = 300
 
 
@@ -35,6 +34,4 @@ url=http://<ip address>
 user=<user>
 password=<password>
 
-[conductor]
-#topic=rsc-conductor