front: drop esbuild dependency

It seems like this was added by mistake in:
#15289

Signed-off-by: Simon Ser <contact@emersion.fr>
Fixes: fa71ce9 ("editoast, front: rename schemas::PacedTrain into schemas::TrainSchedule")

Author: emersion

front/package-lock.json

@@ -118,7 +118,6 @@
     "@vitejs/plugin-react": "^6.0.1",
     "@vitest/eslint-plugin": "^1.4.3",
     "ansi-to-html": "^0.7.2",
-    "esbuild": "0.27.4",
     "eslint": "^9.39.2",
     "eslint-import-resolver-typescript": "^4.4.4",
     "eslint-plugin-import": "^2.31.0",