[roll] Roll fuchsia [build] Delete stale import

Original-Reviewed-on: https://fuchsia-review.googlesource.com/c/fuchsia/+/466874
Original-Revision: 6424ae81078b2bf7e48de588f44f724c18f4c7d7
GitOrigin-RevId: 2b93c173c35c22786c00728e6bdbe4650f1057d8
Change-Id: I612f4d85bda49d060fd22fe175ef0db8c13bcb26
diff --git a/stem b/stem
index cc227e2..aea093c 100644
--- a/stem
+++ b/stem
@@ -10,7 +10,7 @@
              githooks=""
              remote="https://fuchsia.googlesource.com/fuchsia"
              gerrithost="https://fuchsia-review.googlesource.com"
-             revision="6cd7f48ba3aceaadcb3904896905505a7ff140df"/>
+             revision="6424ae81078b2bf7e48de588f44f724c18f4c7d7"/>
   </projects>
   <hooks>
     <hook name="install-fx"