Remove user and group avfs

BUG=chromium:996549
TEST=CQ-passes

Change-Id: I84e3ca23c599523fd292ace391f721161233a3f9
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/overlays/eclass-overlay/+/2411589
Reviewed-by: Mattias Nissler <mnissler@chromium.org>
Reviewed-by: François Degros <fdegros@chromium.org>
Tested-by: François Degros <fdegros@chromium.org>
Commit-Queue: François Degros <fdegros@chromium.org>

profiles/base/accounts/group/avfs

diff --git a/profiles/base/accounts/group/avfs b/profiles/base/accounts/group/avfs
index a029984..99cc813 100644
--- a/profiles/base/accounts/group/avfs
+++ b/profiles/base/accounts/group/avfs
@@ -1,3 +1,4 @@
 group:avfs
 gid:301
 users:cros-disks
+defunct:true

profiles/base/accounts/user/avfs

diff --git a/profiles/base/accounts/user/avfs b/profiles/base/accounts/user/avfs
index 7d25b65..dca42ac 100644
--- a/profiles/base/accounts/user/avfs
+++ b/profiles/base/accounts/user/avfs
@@ -4,3 +4,4 @@
 gecos:FUSE-based virtual FS daemon for archive files
 home:/dev/null
 shell:/bin/false
+defunct:true