Clean up dependencies

node_modules/autoprefixer/lib/hacks/background-clip.js

@@ -1,24 +0,0 @@
-let Declaration = require('../declaration')
-let utils = require('../utils')
-
-class BackgroundClip extends Declaration {
-  constructor(name, prefixes, all) {
-    super(name, prefixes, all)
-
-    if (this.prefixes) {
-      this.prefixes = utils.uniq(
-        this.prefixes.map(i => {
-          return i === '-ms-' ? '-webkit-' : i
-        })
-      )
-    }
-  }
-
-  check(decl) {
-    return decl.value.toLowerCase() === 'text'
-  }
-}
-
-BackgroundClip.names = ['background-clip']
-
-module.exports = BackgroundClip