meta-facebook: Remove warrior yocto release

Change-Id: Ie9778cd79c21a5b237a8eceadb99764a95d83ee9
Signed-off-by: Vijay Khemka <vijaykhemka@fb.com>
diff --git a/conf/layer.conf b/conf/layer.conf
index 786b647..7ff4ac1 100644
--- a/conf/layer.conf
+++ b/conf/layer.conf
@@ -7,4 +7,4 @@
 
 BBFILE_COLLECTIONS += "facebook-layer"
 BBFILE_PATTERN_facebook-layer := "^${LAYERDIR}/"
-LAYERSERIES_COMPAT_facebook-layer := "warrior zeus dunfell"
+LAYERSERIES_COMPAT_facebook-layer := "zeus dunfell"