Remove sys-confit bound from chain-ext

[Dinonard]

Pull Request Summary

Remove system config bound from chain-ext.

[github-actions[bot]]

Package	Line Rate	Branch Rate	Health
frame/vesting/src	87%	0%	✔
frame/collator-selection/src	89%	0%	✔
precompiles/sr25519/src	78%	0%	➖
precompiles/utils/macro/tests	100%	0%	✔
frame/pallet-xcm/src	81%	0%	✔
frame/custom-signatures/src	81%	0%	✔
chain-extensions/trait/src	0%	0%	❌
frame/block-reward/src	96%	0%	✔
precompiles/xcm/src	80%	0%	➖
primitives/xcm/src	88%	0%	✔
chain-extensions/types/dapps-staking/src	0%	0%	❌
frame/dapps-staking/src	93%	0%	✔
chain-extensions/impls/dapps-staking/src	0%	0%	❌
frame/xc-asset-config/src	88%	0%	✔
precompiles/assets-erc20/src	91%	0%	✔
precompiles/substrate-ecdsa/src	78%	0%	➖
precompiles/utils/macro/src	0%	0%	❌
precompiles/utils/src	84%	0%	✔
frame/dapps-staking/src/pallet	85%	0%	✔
precompiles/utils/src/data	72%	0%	➖
precompiles/dapps-staking/src	95%	0%	✔
Summary	86% (8338 / 9727)	0% (0 / 0)	✔

Minimum allowed line rate is 60%