Remove unused selector allChanges$

Google-bug-id: b/246912339
Release-Notes: skip
Change-Id: I32561a76121d41965c3b0c1dae021f6ef4c00e12
diff --git a/polygerrit-ui/app/models/bulk-actions/bulk-actions-model.ts b/polygerrit-ui/app/models/bulk-actions/bulk-actions-model.ts
index c7d63c2..8e0ed61 100644
--- a/polygerrit-ui/app/models/bulk-actions/bulk-actions-model.ts
+++ b/polygerrit-ui/app/models/bulk-actions/bulk-actions-model.ts
@@ -68,11 +68,6 @@
     bulkActionsState => bulkActionsState.loadingState
   );
 
-  public readonly allChanges$ = select(
-    this.state$,
-    bulkActionsState => bulkActionsState.allChanges
-  );
-
   public readonly selectedChanges$ = select(this.state$, bulkActionsState => {
     const result = [];
     for (const changeNum of bulkActionsState.selectedChangeNums) {