Breaking: Remove file normalization

index.js

@@ -1,7 +1,6 @@
 'use strict';
 
 var File = require('vinyl');
-var normalizePath = require('normalize-path');
 
 var helpers = require('./lib/helpers');
 
@@ -56,11 +55,6 @@ function write(file, destPath, callback) {
 
  var sourceMap = file.sourceMap;
 
- // fix paths if Windows style paths
- // TODO: should we be normalizing at all?
- // An end-user can use @gulp-sourcemaps/map-file if they need normalization
- sourceMap.file = normalizePath(file.relative);
-
  // TODO: support null-ish with ==
  if (sourceMap.sourceRoot === null) {
  sourceMap.sourceRoot = undefined;