feat: remove broadcasting Extensions Manager events from ComponentView (#703)

* feat: remove `broadcast` from `ComponentView`

As "Extensions Manager" is removed, the related events' broadcasting is not needed anymore

* fix: restore `manualDealloc`

app/assets/templates/directives/component-modal.pug

@@ -15,5 +15,4 @@
         component-uuid="ctrl.component.uuid",
         application='ctrl.application'
         app-state='self.appState'
-        broadcast='$broadcast'
         )