NotificationServer: Remove unnecessary UID separation

This process is already sandboxed to the point where the UID doesn't
matter, so let's just stop having the separate "notify" user.

Base/etc/SystemServer.ini

@@ -52,11 +52,11 @@ BootModes=text,graphical,self-test
 
 [NotificationServer]
 Socket=/tmp/portal/notify
-SocketPermissions=660
+SocketPermissions=600
 Lazy=1
 Priority=low
 KeepAlive=1
-User=notify
+User=anon
 
 [LaunchServer]
 Socket=/tmp/portal/launch

Base/etc/group

@@ -5,7 +5,6 @@ phys:x:3:window,anon
 audio:x:4:anon
 utmp:x:5:
 lookup:x:10:anon
-notify:x:12:anon
-window:x:13:anon,notify
-clipboard:x:14:anon,notify
+window:x:13:anon
+clipboard:x:14:anon
 users:x:100:anon

Base/etc/passwd

@@ -1,6 +1,5 @@
 root::0:0:root:/root:/bin/sh
 lookup:!:10:10:LookupServer,,,:/:/bin/false
-notify:!:12:12:NotificationServer,,,:/:/bin/false
 window:!:13:13:WindowServer,,,:/:/bin/false
 clipboard:!:14:14:Clipboard,,,:/:/bin/false
 sshd:!:19:19:OpenSSH privsep,,,:/:/bin/false

Base/etc/shadow

@@ -1,6 +1,5 @@
 root::18727::::::
 lookup:!*:18727::::::
-notify:!*:18727::::::
 window:!*:18727::::::
 clipboard:!*:18727::::::
 sshd:!*:18727::::::