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remove Who Uses ViewComponent section #8511

Job	Run time
benchmark	1m 30s
Test compatibility with Primer ViewComponents (main)	19m 14s
test (Rails 7.1, Ruby 3.2)	32s
test (Rails 8.1, Ruby 3.4)	36s
test (Rails 7.2, Ruby 3.3)	33s
test (Rails 8.0, Ruby 3.4)	33s
test (Rails main, Ruby head)	1m 8s
coverage	0s
	24m 6s