remove prettier

package.json

@@ -22,16 +22,11 @@
   },
   "devDependencies": {
     "babel-plugin-prismjs": "^2.0.1",
-    "prettier": "^2.0.5",
-    "gray-matter": "^4.0.2",
     "env-cmd": "^10.1.0",
+    "gray-matter": "^4.0.2",
     "remark": "^13.0.0",
     "remark-html": "^13.0.1",
     "sass": "^1.32.8",
     "yamljs": "^0.3.0"
-  },
-  "prettier": {
-    "semi": false,
-    "singleQuote": true
   }
 }

yarn.lock

@@ -1476,11 +1476,6 @@ postcss@^7.0.32:
     source-map "^0.6.1"
     supports-color "^6.1.0"
 
-prettier@^2.0.5:
-  version "2.0.5"
-  resolved "https://registry.yarnpkg.com/prettier/-/prettier-2.0.5.tgz#d6d56282455243f2f92cc1716692c08aa31522d4"
-  integrity sha512-7PtVymN48hGcO4fGjybyBSIWDsLU4H4XlvOHfq91pz9kkGlonzwTfYkaIEwiRg/dAJF9YlbsduBAgtYLi+8cFg==
-
 prismjs@^1.23.0:
   version "1.23.0"
   resolved "https://registry.yarnpkg.com/prismjs/-/prismjs-1.23.0.tgz#d3b3967f7d72440690497652a9d40ff046067f33"