chore: remove old project dependencies

Author: mrholek

package.json

@@ -95,7 +95,6 @@
     "npm-run-all": "^4.1.2",
     "postcss-cli": "^5.0.0",
     "rimraf": "^2.6.2",
-    "run-sequence": "2.2.1",
     "shelljs": "^0.8.1",
     "stylelint": "^9.1.3",
     "stylelint-config-recommended-scss": "^3.1.0",