API Remove GraphQL #420

Job	Run time
CI / Generate matrix	21s
CI / Context	1s
CI / Check governance	1s
CI / 8.1 prf-low mysql57 phpunit all	2m 40s
CI / 8.2 mariadb phpunit all	2m 57s
CI / 8.3 mysql80 phpunit all	2m 58s
CI / 8.1 mysql57 phplinting	1m 43s
CI / 8.1 mysql57 endtoend root job1	13m 45s
CI / 8.3 mysql80 endtoend root job1	15m 46s
CI / 8.1 mysql57 endtoend root job2	19m 44s
CI / 8.3 mysql80 endtoend root job2	19m 56s
CI / 8.1 mysql57 endtoend root job3	6m 50s
CI / 8.3 mysql80 endtoend root job3	8m 46s
CI / 8.1 mysql57 js	4m 34s
CI / Dispatch tag patch release	0s
	1h 40m 2s

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