chore: Remove redundant `convertSlugToName` util #5096

Job	Run time
Check file changes	5s
Run API Tests	2m 29s
Build React App	7s
Run Integration tests	4m 24s
Run React Tests	0s
E2E tests	8m 58s
Generate Hasura Change Summary	0s
Upsert Vultr Instance	35s
Run Pulumi Preview	0s
Run Healthcheck on Pizza Services	0s
	16m 38s

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