Fix mapped locations

Author: wagenet

lib/colocated-broccoli-plugin.js

@@ -178,7 +178,6 @@ module.exports = class ColocatedTemplateProcessor extends Plugin {
         // It's unclear how to format the comment correctly for coffeescript.
         if (!backingClassPath.endsWith('.coffee')) {
           let jsContentsMap = jsContentsMagic.generateMap({
-            file: jsOutputPath,
             source: backingClassPath,
             includeContent: true,
             hires: true,