chore(deps): remove unused typedoc

Fix angular#2875

Author: filipesilva

package.json

@@ -108,7 +108,6 @@
     "ts-loader": "^0.8.2",
     "tslint": "^3.15.1",
     "tslint-loader": "^2.1.4",
-    "typedoc": "^0.4.2",
     "typescript": "~2.0.3",
     "url-loader": "^0.5.7",
     "webpack": "2.1.0-beta.25",

packages/angular-cli/package.json

@@ -90,7 +90,6 @@
     "ts-loader": "^0.8.2",
     "tslint": "^3.15.1",
     "tslint-loader": "^2.1.4",
-    "typedoc": "^0.4.2",
     "typescript": "~2.0.3",
     "url-loader": "^0.5.7",
     "webpack": "2.1.0-beta.25",