chore: unify all mocked `loom` files (#1732)

When the crates were merged, each component kept its own `loom` file
containing mocked types it needed. This patch unifies them all in one
location.

1 files changed, 3 insertions, 5 deletions

diff --git a/tokio/src/sync/semaphore.rs b/tokio/src/sync/semaphore.rs
index 1120be07..b4a093f8 100644
--- a/tokio/src/sync/semaphore.rs
+++ b/tokio/src/sync/semaphore.rs
@@ -8,12 +8,10 @@
 //! section. If no permits are available, then acquiring the semaphore returns
 //! `Pending`. The task is woken once a permit becomes available.
 
-use crate::sync::loom::{
+use crate::loom::{
+    cell::CausalCell,
     future::AtomicWaker,
-    sync::{
-        atomic::{AtomicPtr, AtomicUsize},
-        CausalCell,
-    },
+    sync::atomic::{AtomicPtr, AtomicUsize},
     thread,
 };