remove colliding deps

Author: yyx990803

package.json

@@ -34,7 +34,7 @@
     "js-beautify": "^1.6.3",
     "loader-utils": "^1.0.2",
     "lru-cache": "^4.0.1",
-    "postcss": "^5.0.10",
+    "postcss": "^5.0.21",
     "postcss-load-config": "^1.1.0",
     "postcss-selector-parser": "^2.0.0",
     "source-map": "^0.5.6",
@@ -69,7 +69,6 @@
     "node-libs-browser": "^2.0.0",
     "normalize-newline": "^3.0.0",
     "null-loader": "^0.1.1",
-    "postcss": "^5.0.21",
     "pug": "^2.0.0-beta6",
     "raw-loader": "^0.5.1",
     "skeleton-loader": "0.0.5",