Disable ARC++ for non-beta boards for M60

BUG=None
TEST=None

Change-Id: I685dbbfcd7780bd1bb55355ef7497a375f7af970
Reviewed-on: https://chromium-review.googlesource.com/530645
Tested-by: Josafat Garcia <josafat@chromium.org>
Reviewed-by: Josafat Garcia <josafat@chromium.org>
diff --git a/overlay-lulu/profiles/base/make.defaults b/overlay-lulu/profiles/base/make.defaults
index f53b3cf..f4fa883 100644
--- a/overlay-lulu/profiles/base/make.defaults
+++ b/overlay-lulu/profiles/base/make.defaults
@@ -11,7 +11,6 @@
 # NOTE: Deprecating feature. New board should NOT have it.
 USE="${USE} allow_consumer_kiosk"
 
-USE="${USE} arc"
 
 # Uncomment this line to activate the serial port.
 #TTY_CONSOLE="ttyS0"
diff --git a/overlay-setzer/make.conf b/overlay-setzer/make.conf
index 47ab1d7..7776a78 100644
--- a/overlay-setzer/make.conf
+++ b/overlay-setzer/make.conf
@@ -8,4 +8,3 @@
 # NOTE: Deprecating feature. New board should NOT have it.
 USE="${USE} allow_consumer_kiosk"
 
-USE="${USE} arc"
diff --git a/overlay-ultima/make.conf b/overlay-ultima/make.conf
index 07c988d..a5fa2c5 100644
--- a/overlay-ultima/make.conf
+++ b/overlay-ultima/make.conf
@@ -8,7 +8,5 @@
 # NOTE: Deprecating feature. New board should NOT have it.
 USE="${USE} allow_consumer_kiosk"
 
-USE="${USE} arc"
-
 # Avoid inhibiting the keyboard (which reports events from side buttons).
 USE="${USE} keyboard_includes_side_buttons"