Remove more references to /var/log/nova.

These were recently removed from the nova element, not all references
were removed causing firstboot to fail with
chown: cannot access `/var/log/nova': No such file or directory

Change-Id: I5a02733d07a697c2d933b9407959b1679b115d12

elements/nova-api/os-refresh-config/post-configure.d/80-nova-api

@@ -1,8 +1,6 @@
 #!/bin/bash
 set -eux
 
-chown -R nova:nova /var/log/nova
-
 # For nova-rpc-zmq-receiver
 mkdir -p /var/run/openstack
 # XXX Hrm, but what if others use this dir?

elements/nova-compute/os-refresh-config/post-configure.d/80-nova-compute

@@ -3,7 +3,6 @@ set -eux
 
 modprobe nbd || true
 
-chown -R nova:nova /var/log/nova
 chown -R nova:nova /var/run/nova
 
 service nova-compute restart

elements/nova/os-apply-config/etc/nova/logging.conf

@@ -60,11 +60,6 @@ class = StreamHandler
 args = (sys.stdout,)
 formatter = context
 
-[handler_watchedfile]
-class = handlers.WatchedFileHandler
-args = ('/var/log/nova/nova.log',)
-formatter = context
-
 [handler_syslog]
 class = handlers.SysLogHandler
 args = ('/dev/log', handlers.SysLogHandler.LOG_USER)