Revert "Initial actionbar model refactor"

This reverts commit d0eb86dfa3.

damus/Util/EventCache.swift

@@ -113,8 +113,6 @@ class EventData {
     var relative_time: RelativeTimeModel = RelativeTimeModel()
     var validated: ValidationResult
     var media_metadata_model: MediaMetaModel
-    var bar_model: ActionBarModel
-    var zap_button_model: ZapButtonModel
     
     var translations: TranslateStatus {
         return translations_model.state
@@ -135,8 +133,6 @@ class EventData {
         self.validated = .unknown
         self.media_metadata_model = MediaMetaModel()
         self.preview_model = .init(state: .not_loaded)
-        self.bar_model = ActionBarModel()
-        self.zap_button_model = ZapButtonModel()
     }
 }