[roll] Roll fuchsia [realm][fuzzing] Clean up manifests and shards

This CL streamlines the component manifests and manifest shard files
used by realmfuzzer. It removes extraneous definitions and deduplicates
as much as possible.

Original-Reviewed-on: https://fuchsia-review.googlesource.com/c/fuchsia/+/907727
Original-Revision: 967bd828674645bc9f92ec15c8b092e70044fa05
GitOrigin-RevId: b1cb8402e91c49e8d5b28857860ce73c0bf37f82
Change-Id: I4ae3572d1c6463bb29bc039084c478f4a3161612

Author: aarongreen

stem

@@ -11,7 +11,7 @@
              githooks="integration/git-hooks"
              remote="https://fuchsia.googlesource.com/fuchsia"
              gerrithost="https://fuchsia-review.googlesource.com"
-             revision="47f6f48c19c3bf5e84811f8d3af42ed6bfbfe472"/>
+             revision="967bd828674645bc9f92ec15c8b092e70044fa05"/>
   </projects>
   <hooks>
     <hook name="install-environment"