clean up protocol declarations

Author: jessesquires

Sources/CollectionViewModel.swift

@@ -15,7 +15,7 @@ import Foundation
 import UIKit
 
 /// Represents a collection view with sections and items.
-public struct CollectionViewModel: Hashable, DiffableViewModel {
+public struct CollectionViewModel: DiffableViewModel {
     /// Returns the empty collection view model.
     public static var empty: Self {
         Self(id: "com.ReactiveCollectionsKit.CollectionViewModel.empty")

Sources/DiffableDataSource.swift

@@ -14,7 +14,7 @@
 import Foundation
 import UIKit
 
-extension AnyHashable: @unchecked @retroactive Sendable { }
+extension AnyHashable: @retroactive @unchecked Sendable { }
 
 @MainActor
 final class DiffableDataSource: UICollectionViewDiffableDataSource<AnyHashable, AnyHashable> {