chore(docz-core): remove unnescesary dependencies

packages/docz-core/package.json

@@ -31,7 +31,6 @@
     "@mdx-js/mdx": "^0.15.0-2",
     "@mdx-js/mdxast": "^0.15.0-2",
     "@sindresorhus/slugify": "^0.3.0",
-    "@vxna/mini-html-webpack-template": "^0.1.7",
     "art-template": "^4.12.2",
     "babel-loader": "^8.0.0-beta.4",
     "babel-plugin-react-docgen": "^2.0.0-rc.1",
@@ -47,7 +46,6 @@
     "detect-port": "^1.2.3",
     "dotenv": "^6.0.0",
     "env-dot-prop": "^1.0.2",
-    "express": "^4.16.3",
     "fast-deep-equal": "^2.0.1",
     "fast-glob": "^2.2.2",
     "file-loader": "^1.1.11",
@@ -105,7 +103,6 @@
     "@types/connect-history-api-fallback": "^1.3.1",
     "@types/deepmerge": "^2.1.0",
     "@types/del": "^3.0.1",
-    "@types/express": "^4.16.0",
     "@types/fs-extra": "^5.0.4",
     "@types/html-webpack-plugin": "^3.2.0",
     "@types/koa": "^2.0.46",

packages/docz-core/src/types.d.ts

@@ -18,7 +18,6 @@ declare module 'unist-util-remove'
 declare module 'hast-util-to-string'
 declare module 'html-minifer'
 declare module 'mini-html-webpack-plugin'
-declare module '@vxna/mini-html-webpack-template'
 declare module 'happypack'
 declare module 'common-tags'
 declare module 'remark-parse'