[roll] Roll fuchsia [serial][banjo] Remove all serial Banjo protocols

Original-Fixed: 333094948
Test: CQ
Original-Reviewed-on: https://fuchsia-review.googlesource.com/c/fuchsia/+/1040167
Original-Revision: bbad823cf1ddd93ed034056dc8cad9408790c416
GitOrigin-RevId: c12c7f25702c328bcfab587b3798153db1a94166
Change-Id: I05d9eec9ede2961c5f462252a3ec1e195308c7f9
diff --git a/stem b/stem
index 0771f2c..e086ad0 100644
--- a/stem
+++ b/stem
@@ -11,7 +11,7 @@
              githooks="integration/git-hooks"
              remote="https://fuchsia.googlesource.com/fuchsia"
              gerrithost="https://fuchsia-review.googlesource.com"
-             revision="1f84a80eba43a397a645ff2e9c6a0cd846fdeef5"/>
+             revision="bbad823cf1ddd93ed034056dc8cad9408790c416"/>
   </projects>
   <hooks>
     <hook name="install-environment"