remove normalizeDocument transform

src/transforms/index.js

@@ -144,7 +144,6 @@ import {
  */
 
 import {
-  normalizeDocument,
   normalizeSelection,
 } from './normalize'
 
@@ -286,7 +285,6 @@ export default {
    * Normalize.
    */
 
-  normalizeDocument,
   normalizeSelection,
 
 }

src/transforms/normalize.js

@@ -1,20 +1,4 @@
 
-/**
- * Normalize the document.
- *
- * @param {Transform} transform
- * @return {Transform}
- */
-
-export function normalizeDocument(transform) {
-  let { state } = transform
-  let { document } = state
-  document = document.normalize()
-  state = state.merge({ document })
-  transform.state = state
-  return transform
-}
-
 /**
  * Normalize the selection.
  *