[roll] Roll fuchsia Revert "[kernel][vm] Destructor helper for lock annotations"

This reverts commit 5f45535233a32011aabe133c309ec70763dcbcbc.

Reason for revert: Possibly breaking smart integration CI changes

Original change's description:
> [kernel][vm] Destructor helper for lock annotations
>
> Moves most of the VmObjectPaged destructor into a helper method so that
> it checks lock annotations. This is useful because normally a
> destructor is considered not to need analysis as it runs when it is
> just being cleaned up. However, in this case the VmObjectPaged can
> still be found from different lists and so the destructor must still
> take part in correct locking behavior.
>
> As part of moving to a helper method some missing lock assertions are
> added.
>
> Change-Id: I32a1d0f68f88e1764bfcca3a5206f0a64671b29c
> Original-Reviewed-on: https://fuchsia-review.googlesource.com/c/fuchsia/+/1135192
> Reviewed-by: Sage Barreda <sagebarreda@google.com>
> Commit-Queue: Adrian Danis <adanis@google.com>

Original-Reviewed-on: https://fuchsia-review.googlesource.com/c/fuchsia/+/1149253
Original-Revision: 8d8a61c8507464b5574d7247b3b48e063beead49
GitOrigin-RevId: f2517df408d21981c477fcb3325cfbe16a7a9c56
Change-Id: I895191ee632351699d523aeb77338c459262dfd4
diff --git a/stem b/stem
index 705f09c..dcba9ea 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="c6c8a6a8e171f4596bf6b428b9b9cb4110ab0e8e"/>
+             revision="8d8a61c8507464b5574d7247b3b48e063beead49"/>
   </projects>
   <hooks>
     <hook name="install-environment"