Now we can remove the close event (#4825)

[jdevcs]

Following #4786

Description

Please include a summary of the changes and be sure to follow our Contribution Guidelines.

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:unit with success.
• 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 and tested 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-4839.onrender.com.

Follow its progress at https://dashboard.render.com/static/srv-c8l3obonlki7tr9eeeo0.

[coveralls]

Pull Request Test Coverage Report for Build 1999494516

• 0 of 0 changed or added relevant lines in 0 files are covered.
• 450 unchanged lines in 10 files lost coverage.
• Overall coverage decreased (-2.8%) to 72.21%

---

Files with Coverage Reduction	New Missed Lines	%
packages/web3-core-requestmanager/src/jsonrpc.js	1	88.0%
packages/web3-core-helpers/lib/errors.js	2	79.41%
packages/web3-core-subscriptions/lib/subscription.js	2	90.37%
packages/web3-core-requestmanager/lib/index.js	17	72.89%
packages/web3-core-helpers/src/formatters.js	25	81.07%
packages/web3-core-helpers/src/errors.js	31	4.41%
packages/web3-utils/src/soliditySha3.js	55	5.13%
packages/web3-utils/src/index.js	62	29.31%
packages/web3-utils/src/utils.js	92	12.86%
packages/web3-eth-accounts/src/index.js	163	23.77%

Totals
Change from base Build 1999461585:	-2.8%
Covered Lines:	3368
Relevant Lines:	4396

---

💛 - Coveralls