Remove RootView.proto.editorRemoved. Transfer remaining logic to Editor.proto.remove

src/app/editor.coffee

@@ -512,12 +512,8 @@ class Editor extends View
     return super if keepData
     @unsubscribeFromBuffer()
     rootView = @rootView()
-    pane = @parent('.pane')
-    paneParent = pane.parent()
-    super
-    pane.remove()
-    paneParent.remove() if paneParent.is('.row:empty, .column:empty')
-    rootView?.editorRemoved(this)
+    if @pane() then @pane.remove() else super
+    rootView?.focus()
 
   unsubscribeFromBuffer: ->
     @buffer.off ".editor#{@id}"

src/app/root-view.coffee

@@ -77,13 +77,6 @@ class RootView extends View
 
       @setTitle(editor.buffer.path)
 
-  editorRemoved: (editor) ->
-    @adjustPaneDimensions()
-    if @editors().length
-      @editors()[0].focus()
-    else
-      @focus()
-
   setTitle: (title='untitled') ->
     document.title = title