remove unused code

app/components/SimpleEditor/notesEditor/NotesEditor.js

@@ -18,12 +18,6 @@ class NotesEditor extends ProseEditor {
     provider.on('noteSelected', this.scrollTo, this)
   }
 
-  getInitialState () {
-    return {
-      trackChangesView: this.props.trackChangesView
-    }
-  }
-
   render ($$) {
     const el = $$('div').addClass('sc-notes-editor')
     let toolbar = this._renderNotesToolbar($$)
@@ -130,9 +124,10 @@ class NotesEditor extends ProseEditor {
     return this.context.notesProvider
   }
 
-  getSurface () {
-    const containerId = this.props.containerId
-    return this.surfaceManager.getSurface(containerId)
+  getInitialState () {
+    return {
+      trackChangesView: this.props.trackChangesView
+    }
   }
 
   getChildContext () {