apparmor: Drop 'Last modified' comment from profiles

At the beginning of each profile we have a comment that says when
the profile was last updated. In theory, it makes sense because
one can see immediately if they are using an outdated profile.
However, we don't do a good job in keeping the comments in sync
with reality and also sysadmins should rather use their package
manager to find out libvirt version which installed the profiles.
Signed-off-by: NMichal Privoznik <mprivozn@redhat.com>
Acked-by: NChristian Ehrhardt <christian.ehrhardt@canonical.com>

src/security/apparmor/libvirt-lxc

-# Last Modified: Fri Feb  7 13:01:36 2014
-
   #include <abstractions/base>
 
   umount,

src/security/apparmor/libvirt-qemu

-# Last Modified: Wed Sep 3 21:52:03 2014
-
   #include <abstractions/base>
   #include <abstractions/consoles>
   #include <abstractions/nameservice>

src/security/apparmor/usr.lib.libvirt.virt-aa-helper

-# Last Modified: Mon Apr  5 15:10:27 2010
 #include <tunables/global>
 
 profile virt-aa-helper /usr/{lib,lib64}/libvirt/virt-aa-helper {

src/security/apparmor/usr.sbin.libvirtd

-# Last Modified: Mon Apr  5 15:03:58 2010
 #include <tunables/global>
 @{LIBVIRT}="libvirt"