fix remove wallet using an index

[jdevcs]

Description

This PR is for checking CI failing tests of following:
Problem deleting account when checksummed address is equal to lowercase address #5050

Type of change

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)

Checklist:

• I have selected the correct base branch.
• I have performed a self-review of my own code.
• I have commented my code, particularly in hard-to-understand areas.
• I have made corresponding changes to the documentation.
• My changes generate no new warnings.
• Any dependent changes have been merged and published in downstream modules.
• I ran npm run dtslint with success and extended the tests and types if necessary.
• I ran npm run test:cov and my test cases cover all the lines and branches of the added code.
• I ran npm run build with success.
• I have tested the built dist/web3.min.js in a browser.
• I have tested my code on the live network.
• I have checked the Deploy Preview and it looks correct.
• I have updated the CHANGELOG.md file in the root folder.

[render]

Your Render PR Server URL is https://web3-js-pr-5202.onrender.com.

Follow its progress at https://dashboard.render.com/static/srv-cb21gdsobjd53f5qqoeg.

[coveralls]

Pull Request Test Coverage Report for Build 2615639448

• 2 of 2 (100.0%) changed or added relevant lines in 1 file are covered.
• 20 unchanged lines in 2 files lost coverage.
• Overall coverage increased (+0.01%) to 74.342%

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Files with Coverage Reduction	New Missed Lines	%
packages/web3-eth-accounts/lib/index.js	9	85.43%
packages/web3-eth-accounts/src/index.js	11	23.67%

Totals
Change from base Build 2610474340:	0.01%
Covered Lines:	3262
Relevant Lines:	4138

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💛 - Coveralls

[jdevcs]

CI in this PR is passing and the changes in this PR are approved in #5050