Revert "nyan_big: Freonize nyan_big"

Freon is failing too many graphics tests.

BUG=chromium:650465

This reverts commit c962c31c22ef3e7bc64acae38096038b6168c11b.

Change-Id: I7f78947fce7b894079e80fc30ea1b050934ffde4
Reviewed-on: https://chromium-review.googlesource.com/389836
Reviewed-by: Bernie Thompson <bhthompson@chromium.org>
Commit-Queue: Bernie Thompson <bhthompson@chromium.org>
Tested-by: Bernie Thompson <bhthompson@chromium.org>
diff --git a/overlay-variant-nyan-big/metadata/layout.conf b/overlay-variant-nyan-big/metadata/layout.conf
index a300193..b2c45d0 100644
--- a/overlay-variant-nyan-big/metadata/layout.conf
+++ b/overlay-variant-nyan-big/metadata/layout.conf
@@ -1,4 +1,4 @@
-masters = portage-stable chromiumos eclass-overlay nyan_freon
+masters = portage-stable chromiumos eclass-overlay nyan
 profile-formats = portage-2 profile-default-eapi
 profile_eapi_when_unspecified = 5-progress
 repo-name = nyan_big
diff --git a/overlay-variant-nyan-big/profiles/base/parent b/overlay-variant-nyan-big/profiles/base/parent
index f5e204c..ce572e8 100644
--- a/overlay-variant-nyan-big/profiles/base/parent
+++ b/overlay-variant-nyan-big/profiles/base/parent
@@ -1 +1 @@
-nyan_freon:base
+nyan:base