Revert decryption banner & try fix context menu crash. (#525)

ElementX/Sources/Services/Timeline/TimelineController/RoomTimelineController.swift

@@ -218,12 +218,11 @@ class RoomTimelineController: RoomTimelineControllerProtocol {
         updateTimelineItems()
     }
     
-    // swiftlint:disable:next cyclomatic_complexity function_body_length
+    // swiftlint:disable:next cyclomatic_complexity
     private func updateTimelineItems() {
         var newTimelineItems = [RoomTimelineItemProtocol]()
         var canBackPaginate = true
         var isBackPaginating = false
-        var hasEncryptedItems = false
         
         var createdIdentifiers = [String: Bool]()
 
@@ -244,9 +243,6 @@ class RoomTimelineController: RoomTimelineControllerProtocol {
                     if createdIdentifiers[timelineItem.id] == nil {
                         newTimelineItems.append(timelineItem)
                         createdIdentifiers[timelineItem.id] = true
-                        if timelineItem is EncryptedRoomTimelineItem {
-                            hasEncryptedItems = true
-                        }
                     } else {
                         MXLog.error("Found duplicated timeline item, ignoring")
                     }
@@ -284,7 +280,6 @@ class RoomTimelineController: RoomTimelineControllerProtocol {
         callbacks.send(.updatedTimelineItems)
         callbacks.send(.canBackPaginate(canBackPaginate))
         callbacks.send(.isBackPaginating(isBackPaginating))
-        callbacks.send(.hasEncryptedItems(hasEncryptedItems))
     }
     
     private func computeGroupState(for itemProxy: TimelineItemProxy,

ElementX/Sources/Services/Timeline/TimelineController/RoomTimelineControllerProtocol.swift

@@ -23,7 +23,6 @@ enum RoomTimelineControllerCallback {
     case updatedTimelineItem(_ itemId: String)
     case canBackPaginate(Bool)
     case isBackPaginating(Bool)
-    case hasEncryptedItems(Bool)
 }
 
 enum RoomTimelineControllerAction {