Revert "eclass-overlay: Add user metrics to group debugfs-access"

This reverts commit d80a81151315b007fb7ba0af8e0d05571bfb4e57.

Reason for revert: Breaks all LCQ runs.  See https://logs.chromium.org/logs/chromeos/buildbucket/cr-buildbucket.appspot.com/8899529087773587984/+/steps/ImageTest/0/stdout

Original change's description:
> eclass-overlay: Add user metrics to group debugfs-access
> 
> metrics_daemon needs to access debugfs for logging i915 GPU frequency in
> vmlog. Add user metrics to group debugfs-access for the permission.
> 
> BUG=chromium:989366
> TEST=Build and boot. Verify that vmlog contains i915 GPU frequency.
> 
> Change-Id: I7c1b7c0eb60962261fd6e245297d8a99bee6442f
> Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/overlays/eclass-overlay/+/1849073
> Reviewed-by: Allen Webb <allenwebb@google.com>
> Tested-by: Chinglin Yu <chinglinyu@chromium.org>
> Commit-Queue: Chinglin Yu <chinglinyu@chromium.org>

Bug: chromium:989366
Change-Id: I647ddf22cd8da2aa4d702066c55b4a5cddb368d2
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/overlays/eclass-overlay/+/1862649
Reviewed-by: LaMont Jones <lamontjones@chromium.org>
Reviewed-by: Mike Frysinger <vapier@chromium.org>
Tested-by: LaMont Jones <lamontjones@chromium.org>
diff --git a/profiles/base/accounts/group/debugfs-access b/profiles/base/accounts/group/debugfs-access
index adb5a34..63d4395 100644
--- a/profiles/base/accounts/group/debugfs-access
+++ b/profiles/base/accounts/group/debugfs-access
@@ -1,3 +1,3 @@
 group:debugfs-access
 gid:605
-users:arc-camera,shill,power,metrics
+users:arc-camera,shill,power