remove some more unused deps

package.json

@@ -20,17 +20,13 @@
   "dependencies": {
     "html-minifier": "^3.5.21",
     "shimport": "0.0.14",
-    "source-map-support": "^0.5.10",
     "sourcemap-codec": "^1.4.4",
-    "string-hash": "^1.1.3",
-    "tslib": "^1.9.3"
+    "string-hash": "^1.1.3"
   },
   "devDependencies": {
-    "@types/mkdirp": "^0.5.2",
     "@types/mocha": "^5.2.5",
     "@types/node": "^10.12.21",
     "@types/puppeteer": "^1.11.3",
-    "@types/rimraf": "^2.0.2",
     "agadoo": "^1.0.1",
     "cheap-watch": "^1.0.2",
     "cookie": "^0.3.1",