chore(deps-dev): remove patch-package direct dependency (#4218)

Author: trivikr

package.json

@@ -34,7 +34,6 @@
     "karma-chrome-launcher": "2.2.0",
     "karma-jasmine": "^1.1.0",
     "mocha": "^3.0.0",
-    "patch-package": "6.4.7",
     "repl.history": "*",
     "semver": "*",
     "typescript": "2.0.8",