chore(dependencies): remove unused ansi-regex (apache#26687)

Author: rusackas

superset-frontend/package-lock.json

@@ -121,7 +121,6 @@
     "@visx/xychart": "^3.0.0",
     "abortcontroller-polyfill": "^1.1.9",
     "ace-builds": "^1.4.14",
-    "ansi-regex": "^4.1.1",
     "antd": "4.10.3",
     "babel-plugin-typescript-to-proptypes": "^2.0.0",
     "bootstrap": "^3.4.1",