Remove onTabClosed from interactor

app/src/main/java/org/mozilla/fenix/browser/BaseBrowserFragment.kt

@@ -221,8 +221,6 @@ abstract class BaseBrowserFragment : Fragment(), UserInteractionHandler, Session
                             tabTrayDialog.dismiss()
                         }
 
-                        override fun onTabClosed(tab: Tab) { /* noop */ }
-
                         override fun onNewTabTapped(private: Boolean) {
                             (activity as HomeActivity).browsingModeManager.mode = BrowsingMode.fromBoolean(private)
                             tabTrayDialog.dismiss()

app/src/main/java/org/mozilla/fenix/home/HomeFragment.kt

@@ -371,10 +371,6 @@ class HomeFragment : Fragment() {
                     (activity as HomeActivity).browsingModeManager.mode = BrowsingMode.fromBoolean(private)
                     tabTrayDialog.dismiss()
                 }
-
-                override fun onTabClosed(tab: mozilla.components.concept.tabstray.Tab) {
-                    /* noop */
-                }
             }
         }
 

app/src/main/java/org/mozilla/fenix/tabtray/TabTrayDialogFragment.kt

@@ -25,7 +25,6 @@ class TabTrayDialogFragment : AppCompatDialogFragment(), TabTrayInteractor {
     interface Interactor {
         fun onTabSelected(tab: Tab)
         fun onNewTabTapped(private: Boolean)
-        fun onTabClosed(tab: Tab)
     }
 
     private lateinit var tabTrayView: TabTrayView