vars: Drop b1c1 from pixels

Change-Id: I9fb7fd076ed19c7c5f60d4a8f258e363eaeb555e

vars/pixels

-# Google Pixels
+# Google Pixels, currently supported in AOSP
 # Usage: ${devices[@]}
 readonly devices=(
   raven
@@ -11,6 +11,4 @@ readonly devices=(
   flame
   bonito
   sargo
-  crosshatch
-  blueline
 )