style: remove inconsistent on-chain rejection label

[iamacook]

What it solves

Resolves #3443

How this PR fixes it

The old on-chain rejection label styling was removed to keep it consistent across tthe app.

How to test it

1. Create a transaction and corresponding on-chain rejection.
2. Observe that the on-chain rejection in the group has the usual transaction label style.

Screenshots

[github-actions]

CLA Assistant Lite All Contributors have signed the CLA.

[katspaugh]

Nice 🙏

[github-actions]

ESLint Summary View Full Report

Annotations are provided inline on the Files Changed tab. You can also see all annotations that were generated on the annotations page.

Type	Occurrences	Fixable
Errors	0	0
Warnings	0	0
Ignored	0	N/A

• Result: ✅ success
• Annotations: 0 total

---

^{Report generated by eslint-plus-action}

[coveralls]

Pull Request Test Coverage Report for Build 1808211266

• 0 of 1 (0.0%) changed or added relevant line in 1 file are covered.
• No unchanged relevant lines lost coverage.
• Overall coverage increased (+0.01%) to 33.501%

---

Changes Missing Coverage	Covered Lines	Changed/Added Lines	%
src/routes/safe/components/Transactions/TxList/TxCollapsed.tsx	0	1	0.0%

Totals
Change from base Build 1808105153:	0.01%
Covered Lines:	3215
Relevant Lines:	8555

---

💛 - Coveralls

[github-actions]

Deployment links

🟠 Rinkeby	⚪ Mainnet	🟣 Polygon	🟡 BSC	⚫ Arbitrum	🟢 Gnosis Chain

[francovenica]

Nice. This was solved faster than I thought. Looks good to me

[github-actions]

E2E Tests Failed
Check the results here: https://github.com/gnosis/safe-react-e2e-tests/actions/runs/1808244044

Failed tests:

• ❌ Read-only transaction creation and review Read-only transaction creation and review
• ❌ Safe Balances Safe Balances