chore: remove newPostsView when load gap toots

Mastodon/Scene/HomeTimeline/HomeTimelineViewModel+LoadMiddleState.swift

@@ -83,10 +83,8 @@ extension HomeTimelineViewModel.LoadMiddleState {
                     os_log("%{public}s[%{public}ld], %{public}s: load %{public}ld toots, %{public}%ld new toots", ((#file as NSString).lastPathComponent), #line, #function, toots.count, newToots.count)
                     if newToots.isEmpty {
                         stateMachine.enter(Fail.self)
-                        viewModel.homeTimelineNavigationBarState.newTopContent.value = false
                     } else {
                         stateMachine.enter(Success.self)
-                        viewModel.homeTimelineNavigationBarState.newTopContent.value = true
                     }
                 }
                 .store(in: &viewModel.disposeBag)