Update `CITATION.bib` to remove entanglement forging authors (backport #583)

[mergify[bot]]

This is a follow up to #580. This removes six additional authors who only contributed to entanglement forging and have made no direct contributions to circuit cutting to the best of my knowledge.

I've also reformatted with one author per line.

A diff that ignores whitespace can be generated by running git show --color-words on this branch.

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This is an automatic backport of pull request #583 done by Mergify.

[coveralls]

Pull Request Test Coverage Report for Build 9021935274

Details

• 0 of 0 changed or added relevant lines in 0 files are covered.
• No unchanged relevant lines lost coverage.
• Overall coverage remained the same at 95.489%

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Totals
Change from base Build 9008923239:	0.0%
Covered Lines:	3493
Relevant Lines:	3658

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💛 - Coveralls