audit: Switch to global 'audit' use flag where appropriate

Link: https://archives.gentoo.org/gentoo-dev/message/32b1e333faa627491baa3c7492d64956

app-emulation/libvirt/metadata.xml

@@ -55,7 +55,6 @@
 	</flag>
 	<!-- Miscellaneous flags -->
 	<flag name="apparmor">Enable AppArmor support</flag>
-	<flag name="audit">support <pkg>sys-process/audit</pkg></flag>
 	<flag name="fuse">Allow LXC to use <pkg>sys-fs/fuse</pkg> for mount
 		points</flag>
 	<flag name="numa">

app-forensics/aide/metadata.xml

@@ -3,7 +3,6 @@
 <pkgmetadata>
 	<herd>forensics</herd>
 	<use>
-		<flag name="audit">Enable support for <pkg>sys-process/audit</pkg></flag>
 		<flag name="prelink">Enable support for <pkg>sys-devel/prelink</pkg></flag>
 	</use>
 	<upstream>

dev-util/perf/metadata.xml

@@ -5,9 +5,6 @@
     <email>naota@gentoo.org</email>
   </maintainer>
   <use>
-    <flag name="audit">
-      Enable support for sys-process/audit.
-    </flag>
     <flag name="demangle">
       Enable C++ symbol name demangling, using libbfd from
       <pkg>sys-devel/binutils</pkg>. When this flag is enabled, the

gnome-base/gdm/metadata.xml

@@ -3,7 +3,6 @@
 <pkgmetadata>
 <herd>gnome</herd>
 <use>
-	<flag name="audit">Enable support for <pkg>sys-process/audit</pkg></flag>
 	<flag name="fprint">Enables experimental fingerprint authentication using
 		<pkg>sys-auth/fprintd</pkg></flag>
 	<flag name="plymouth">Enable support for smooth transition from

sys-apps/openrc/metadata.xml

@@ -3,7 +3,6 @@
 <pkgmetadata>
 	<herd>openrc</herd>
 	<use>
-		<flag name="audit">enable support for Linux audit subsystem</flag>
 		<flag name="netifrc">enable Gentoo's network stack (net.* scripts)</flag>
 		<flag name="newnet">enable the new network stack (experimental)</flag>
 		<flag name="tools">build optional tools</flag>

sys-apps/shadow/metadata.xml

@@ -3,9 +3,6 @@
 <pkgmetadata>
 <herd>base-system</herd>
 <herd>pam</herd> <!-- only for USE=pam -->
-<use>
- <flag name='audit'>Enable support for <pkg>sys-process/audit</pkg></flag>
-</use>
 <upstream>
  <remote-id type="cpe">cpe:/a:debian:shadow</remote-id>
 </upstream>

sys-libs/pam/metadata.xml

@@ -6,8 +6,6 @@
     <email>pam-bugs@gentoo.org</email>
   </maintainer>
   <use>
-    <flag name='audit'>Enable support for <pkg>sys-process/audit</pkg></flag>
-
     <flag name="berkdb">
       Build the pam_userdb module, that allows to authenticate users
       against a Berkeley DB file. Please note that enabling this USE

x11-misc/lightdm/metadata.xml

@@ -6,7 +6,6 @@
 		<name>Markos Chandras</name>
 	</maintainer>
 	<use>
-		<flag name="audit">support <pkg>sys-process/audit</pkg></flag>
 		<flag name="gtk">Pull in the gtk+ greeter</flag>
 		<flag name="introspection">Use dev-libs/gobject-introspection for introspection</flag>
 		<flag name="kde">Pull in the kde greeter</flag>