chore(dependencies): removes unused @visx/tooltip (apache#26686)

Author: rusackas

superset-frontend/package-lock.json

@@ -118,7 +118,6 @@
     "@visx/grid": "^3.0.1",
     "@visx/responsive": "^3.0.0",
     "@visx/scale": "^3.0.0",
-    "@visx/tooltip": "^3.0.0",
     "@visx/xychart": "^3.0.0",
     "abortcontroller-polyfill": "^1.1.9",
     "ace-builds": "^1.4.14",