Drop unnecessary storybook-chromatic import.

Author: ghengeveld

.storybook/config.js

@@ -1,6 +1,4 @@
 import { configure } from "@storybook/react"
 
-import "storybook-chromatic"
-
 const req = require.context("../stories", true, /\.stories\.js$/)
 configure(() => req.keys().forEach(filename => req(filename)), module)