cm: Remove Focal

 * There are a number of issues with this app, and it's currently not
   working very well on most devices.

Change-Id: I36094c68fa0f642921d478aa72387bce2b88a224
diff --git a/config/common.mk b/config/common.mk
index 996a963..d6083f8 100644
--- a/config/common.mk
+++ b/config/common.mk
@@ -142,7 +142,6 @@
 
 # Required CM packages
 PRODUCT_PACKAGES += \
-    Focal \
     Development \
     LatinIME \
     Superuser \