vars: Drop Pixel 3a

* No longer getting updates

Change-Id: Ib8c0994e04e744973cf2f5c3daa279718a9bf323
diff --git a/vars/devices b/vars/devices
index b7eb6c8..141f1ab 100644
--- a/vars/devices
+++ b/vars/devices
@@ -9,6 +9,4 @@
   sunfish
   coral
   flame
-  bonito
-  sargo
 )
diff --git a/vars/pixels b/vars/pixels
index 03144bb..6ebb0e4 100644
--- a/vars/pixels
+++ b/vars/pixels
@@ -9,6 +9,4 @@
   sunfish
   coral
   flame
-  bonito
-  sargo
 )