Clean up dependencies

node_modules/postcss-import/lib/assign-layer-names.js

@@ -1,17 +0,0 @@
-"use strict"
-
-module.exports = function (layer, node, state, options) {
-  layer.forEach((layerPart, i) => {
-    if (layerPart.trim() === "") {
-      if (options.nameLayer) {
-        layer[i] = options
-          .nameLayer(state.anonymousLayerCounter++, state.rootFilename)
-          .toString()
-      } else {
-        throw node.error(
-          `When using anonymous layers in @import you must also set the "nameLayer" plugin option`
-        )
-      }
-    }
-  })
-}