MNT Remove unit test for removed method #3657

Job	Run time
CI / Context	1s
CI / Generate matrix	11s
CI / 8.3 prf-low mariadb phpunit framework-core	6m 18s
CI / Check governance	0s
CI / 8.3 mysql80 phpunit framework-core	8m 11s
CI / 8.4 mysql84 phpunit framework-core	7m 45s
CI / 8.3 prf-low mariadb phpunit framework-orm	11m 48s
CI / 8.3 mysql80 phpunit framework-orm	13m 53s
CI / 8.4 mysql84 phpunit framework-orm	13m 5s
CI / 8.3 mysql80 phplinting	2m 18s
CI / 8.3 mysql80 phpunit framework-cache-only inmemorycache	1m 28s
CI / Dispatch tag patch release	0s
	1h 4m 58s

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