chore: remove repetitive word

[ianlv]

Pull Request Summary

Check list

• [ ] added or updated unit tests
• [ ] updated Astar official documentation
• [ ] added OnRuntimeUpgrade hook for precompile revert code registration
• [ ] added benchmarks & weights for any modified runtime logics.

[github-actions[bot]]

This PR is stale because it has been open 60 days with no activity. Remove stale label or comment or this will be closed in 14 days.

[github-actions[bot]]

This PR was closed because it has been stalled for 14 days with no activity.