chore(scripts): clean postinstall

Author: dhruvdutt

package.json

@@ -37,7 +37,6 @@
     "format:js": "prettier-eslint ./bin/*.js ./bin/**/*.js ./test/**/*.js ./packages/**/**/*.js ./packages/**/*.js --write",
     "format:ts": "prettier-eslint ./packages/**/**/*.ts ./packages/**/*.ts ./packages/**/**/**/*.ts --write",
     "lint": "eslint \"./bin/*.js\" \"./bin/**/*.js\" \"./test/**/*.js\" \"packages/**/!(node_modules)/*.ts\"  \"packages/**/!(node_modules)/**/*.ts\"",
-    "postinstall": "node ./bin/opencollective.js",
     "pretest": "npm run build && npm run lint",
     "reportCoverage": "nyc report --reporter=json && codecov -f coverage/coverage-final.json --disable=gcov",
     "test": "nyc jest --maxWorkers=4 --reporters=default --reporters=jest-junit",